I BUY AUTOMOTIVE BUSINESSES! If you decide not to do this you self and go to a repair shop, please ask the business owner if they would consider selling there business. DM me their information if they are interested in selling. If a deal is made then finders reward $$ will be given.
Nice to learn the differences of those Chrysler MAGNUM v8 blocks as it was fun to refurbish one here, with a Hughes Engines hi-torque SteamRoller EFI cam, to put into a 1998 Dodge RAM 1500 QuadCab 4x4 w/ 3.54 factory gears. These MAGNUM power-plants are overlooked by many folks as it isn't a "Hemi", but very reliable plus a tried & true design as many MAGNUMS (v6 too) are still on the road here in South Central Alaska. AWESOME VIDEO & Thank you!
You did your research brother! I'm sure a lot of new guys gettin' into Magnums will definitely find this video helpful! Oh, and for the Magnum 360's rectangular piston dish, it's 11cc. This matters most when configuring your compression ratio, as even 1cc can be critical in determining head gasket thickness and everything else. If ya can, cc a Mag 360 piston dish and verify the volume with a graduated syringe! My stock pistons were 11cc.
Thank you for the video. I love learning new things. I never knew of the core plug differences. People call them "freeze plugs", I do as well but I've been told that they are actually "core plugs".
This video couldn't have come at a better time. I found a thread about someone putting a 318 into a BMW e30. Well, it looks like I'm going to be the first to put a 360 magnum into one. Nice to know that it will for sure fit. Should have the donor truck at my house in a few days, chassis is ready and waiting
I have the 360 magnum in my 98 Jeep Grand Cherokee, it’s been an excellent engine. Just hit 185,000 today, actually. I also owned a 94 Dakota with the 318. It was still running with 215,000 when I sold it. The magnums are super reliable, just all magnum engines usually end up with a plenum intake problem. Other than that, they just keep running.
Since the magnum blocks and the la blocks are basically the same, they're designed to make more than 230-250 horsepower reliably with the best years for the la 360 making about 260 advertised (probably made more. Dodge has a history of doing that) before they were exclusively in trucks or vans. They can handle damn close to double their horsepower rating before you really gotta worry about your block getting Swiss cheesed.
The older, LA small blocks the 318 had 1.78 intake valves and the 360 had 1.88, early 340's had 2.02, later had 1.88. Port sizes on the 318 were smaller than the 340 and 360. Even though the intake manifolds would bolt up the runners wouldn't match, hurting airflow. Going from a 2 barrel to a 4 barrel on a 318 would need a head swap.
Great video, I've got a 318 and a 360 (LA Motors) at home and figuring out how I'm gonna rebuild them. Your video helps fuel the ideas for these two great engines
Really very informative video I greatly enjoyed an appreciated as never have I got a chance to do what you did on this video An I was always curious to see .. thanks man !! 👍
Some where about 98 or 99 the pistons got a deeper dish than the pistons from the previous years. The rebuilder pistons also have the deeper dish. So the earlier magnum engines had a little higher compression.
If mopar had a decent head they would be a lot nastier, a 360 has a few things sbc guys do to make them hall butt, they've got the 6 1/8 inch rod, the 18° value angle, just no flow to work with these attributes!!! Plus they cost sooooo damn much more, but I still love'em!!!!
the magnum head IS decent for stock. runs right with a vortec. just bowl port and clean up the casting slag, and youre good to go. 210-220cfm @.0500 lift STOCK(before bowl work). thats good for 400hp.
That was a great video! I wish I had a house so I could start working on my Valiant. I think we are going to be living in an apartment for a year or more. One day I will get there. In the mean time I will enjoy all of your adventures with your MoPars. Thank you for the lesson. It was cool to learn all of that about the 318 and 360. Keep it up. I bet a 318 stroker would be a fun build?
@@TheGasTap In Shawnee Kansas. Pretty much KC Kansas. My wife and I live in an apartment near her sister. My parents live about 2 and half hours away from us near Wichita Kansas. My 1969 Plymouth Valiant, 1973 Newport, and my little brothers 1972 New Yorker and his 1968 Plymouth Satellite station wagon are all at mom and dads house near Wichita.
@@TheGasTap thank you for saying that! One of these days I will stop by and we can check out our Valiants together. I sure hope you hang on to your Valiant. I have huge plans to put a jeff schwartz performance full chassis and a indy heads 572 super street hemi in my Valiant. Make it full built. All custom interior. I would definitely love to team up with you some how one of these days. My Navy retirement date is coming up soon and I am itching to get a house around here and start my own shop. I would definitely make the drive to come visit you once I can get things going. You are very inspiring and I love that you like MoPars and you have a 1969 Valiant! So cool Alex 😎🇺🇲🇺🇲🇺🇲🇺🇲🇺🇲🇺🇲🇺🇲
I had 360 in my little red express in my pickup I thermo guard had the headers ran them out in front of the real wheels loud straight pipes true duals had posatrack 4.10 ratiocam was a fire ball hydraulic this truck would scoot think was eldablock travhslaimtsle miss that ol pickup
To the best of my knowledge early magnums 93-95ish 5.2 and 5.9 used leftover stock LA blocks for the magnums, ( so on early magnums there should be no difference between 360LA and 5.9 magnum) andsome still had the oiling hole for the heads/valvetrain in them, they were tapped and blocked off, later blocks still had the boss for the oil, but was never machined. Somewhere around the late 90's the casting was change and the magnum blocks are a bit lighter/ thinner.
Are the L A bell housings mounts the same as the 2000 magnums? I have a 1984 dodge pick up and I would like to put a newer injected magnum in it. Mine has a manual 4 speed transmission.
Heres my question... are the 318 magnum pistons that are factory std bore taller then the old factory la pistons? Ive got a 318 magnum block laying around but im building a la block with the 302 heads?
is there a difference with the bolt spread on the main caps just curious if you can machine the 318 to fit the 360 crank or if its better to turn down the 360 crank to fit. I got a poly 318 and and like to try and find a junkyard 36 magnum crank for a budget stroker build
Mopar performance and summit racing sell cast 360 cranks that are machined and balanced to bolt into a 318 (magnum or LA) You can use the same stock LA connecting rods with shorter pistons. The magnum connecting rods usually need to have the small end machined for clearence with shorter pistons. Both the 360 LA and magnums are externally balanced engines, and both are weighted differently. (LA harmonic balacer and flex plate or torque converter, will not balance a magnum, and vice versa) Both the 318 LA and magnums are internally balanced, so are the aforementioned cranks, and the last time I checked the cast cranks are going for around $300.00 US.
@@jessewalker5413 No problem. Decades ago it was common enough for race shops to take a 360 crank and turn down the main journals to fit a 318, but, nowadays it costs more to have one turned, and balanced properly than to just buy a ready to go one. And with a stock 318 bore, the 360 crank will give you around 344cid. I am not overly familiar with a 318 poly, so I don't know if there is an affordable good style aftermarket piston for that engine. Good luck to you and if you don't mind, let us know what you find out. Incase someone else is trying to do what you are doing. 👍
@ The gas tap does mopar or anyone sell the the heavy duty magnum block for racing or off road use anymore? I thought that it was made of aluminum? ,but i cant remember Can you possibly shed some light on this ?
I don’t think the R3 block is available new anymore. Hughes has the Ritter but I’m not sure how good they are. www.hughesengines.com/TechArticles/1ritterracingsmallblocks.php
I have a 1968 Plymouth satellite with the 318 it needs to be put in the machine shop and it’s going to take some time but I have a 360 rigged up on the old arrogation pump would it swap out temporarily just fine until I get the 318 back from machine shop? Would appreciate some help from some old school Mopar Gearheads
so they made 2 different castings for the blocks AS in freeze plugs 318- 60 we call freeze plugs welsh plugs in Austraya just a little note of interest . that would be expensive? so la 273-360 theyd be same block? ive never looked into it BUD.
LA,318,340,360, are all different castings, I don't know about the 273. Early magnums used left over LA blocks, with the oiling hole for the heads/valvetrain tapped and blocked off, or later on the boss is still there but was never drilled. Somewhere in the late nineties the casting was changed so that the magnum blocks are slightly thinner and lighter than the LA
@@TheGasTap thanks. At some point I will get to my 69cuda. When I do I will beat the snot out of it. Hence needing a replacement for the 318. Thanks for all the content.
@@stannelson2582 The 318 LA timing cover, harmonic balancer and all accessories will bolt on a magnum 5.2 (318). If you want to keep the v belt look, and if you want to keep a mechanical fuel pump, magnum engines have a "short nose" camshaft that does not have an eccentric for the fuel pump. But summit racing sells an adapter so you can use the mechanical pump, or an LA "long nose" cam will fit right in.
I had a 360 motor in my Chrysler Cordova I really wasn't that impressed with the motor I think 340 is by far the great motor. My brother had a Plymouth Fury 3 was a old cop car with a 440 Mag in it pursuit motor that thing turned on on the highway
I have a 340 bare block with one sleeved cylinder. I was going to build it, but happened upon a free 360 Magnum complete, running engine. I'm located in Iowa for reference.
YES!!! You are going to provide us with a 318/340/360 dyno shootout? Same heads, cam, intake and compression ratio!!! I’m so looking forward to this!!!!
Got a question. I’m looking to do a Magnum swap in my 86 D100. I have just recently read where the magnum engines have their pistons over .060 down in the hole at TDC. Being that far in the hole plus the head gasket thickness, leaves zero quench. Have you ever addressed this with any of your builds? If so, how? Decked the block, taller compression height pistons, etc? Thanks!
I BUY AUTOMOTIVE BUSINESSES!
If you decide not to do this you self and go to a repair shop, please ask the business owner if they would consider selling there business. DM me their information if they are interested in selling. If a deal is made then finders reward $$ will be given.
The magnums are great engines
I love the 318s. Great engines
Nice to learn the differences of those Chrysler MAGNUM v8 blocks as it was fun to refurbish one here, with a Hughes Engines hi-torque SteamRoller EFI cam, to put into a 1998 Dodge RAM 1500 QuadCab 4x4 w/ 3.54 factory gears. These MAGNUM power-plants are overlooked by many folks as it isn't a "Hemi", but very reliable plus a tried & true design as many MAGNUMS (v6 too) are still on the road here in South Central Alaska. AWESOME VIDEO & Thank you!
As a Mopar guy myself, this is very informative and Satisfying. Great job!
You did your research brother! I'm sure a lot of new guys gettin' into Magnums will definitely find this video helpful! Oh, and for the Magnum 360's rectangular piston dish, it's 11cc. This matters most when configuring your compression ratio, as even 1cc can be critical in determining head gasket thickness and everything else. If ya can, cc a Mag 360 piston dish and verify the volume with a graduated syringe! My stock pistons were 11cc.
Good info for figuring out what your looking at if you can't find the numbers.
Thank you for the video. I love learning new things. I never knew of the core plug differences. People call them "freeze plugs", I do as well but I've been told that they are actually "core plugs".
Not a mopar guy but it's interesting to hear this. There are some nice ones that I wouldn't mind having.
Good info
Thanks for the info on these two engines... I have two 318 magnums
This video couldn't have come at a better time. I found a thread about someone putting a 318 into a BMW e30. Well, it looks like I'm going to be the first to put a 360 magnum into one. Nice to know that it will for sure fit. Should have the donor truck at my house in a few days, chassis is ready and waiting
That will be sweet!
They are stamped 318 or 360 on the front of the motors below the drivers head, but i usually just look at the balancers to tell them apart
I have the 360 magnum in my 98 Jeep Grand Cherokee, it’s been an excellent engine. Just hit 185,000 today, actually. I also owned a 94 Dakota with the 318. It was still running with 215,000 when I sold it. The magnums are super reliable, just all magnum engines usually end up with a plenum intake problem. Other than that, they just keep running.
Since the magnum blocks and the la blocks are basically the same, they're designed to make more than 230-250 horsepower reliably with the best years for the la 360 making about 260 advertised (probably made more. Dodge has a history of doing that) before they were exclusively in trucks or vans. They can handle damn close to double their horsepower rating before you really gotta worry about your block getting Swiss cheesed.
Excellent presentation.
The older, LA small blocks the 318 had 1.78 intake valves and the 360 had 1.88, early 340's had 2.02, later had 1.88. Port sizes on the 318 were smaller than the 340 and 360. Even though the intake manifolds would bolt up the runners wouldn't match, hurting airflow. Going from a 2 barrel to a 4 barrel on a 318 would need a head swap.
Great video, looking forward to more.
Great video, I've got a 318 and a 360 (LA Motors) at home and figuring out how I'm gonna rebuild them. Your video helps fuel the ideas for these two great engines
Great comparison
Good job.
Good vid! Thx
Great share Alex .. Please show the rebuild ! I ENJOYED..
Very informative video. Saved to my fav/ref folder
great info thanks Alex
Sweet with just changing the pistons on the 360 to a flat top would increase the compression 🤙🤙 great vid
Valuable information
Great video
Thank you
Great info. thanks
“Three-One-Eight!”
I thought you gave a informative talk about the differences and how to identify the 318 and 360, great job and thank you.
Really very informative video I greatly enjoyed an appreciated as never have I got a chance to do what you did on this video An I was always curious to see .. thanks man !! 👍
Thanks for the info have a nice day
Amazing video very informative
Interesting that the 360 had to give up water passage size in order to beef up around the cylinder bores.
Some where about 98 or 99 the pistons got a deeper dish than the pistons from the previous years. The rebuilder pistons also have the deeper dish. So the earlier magnum engines had a little higher compression.
Thank you for that!! Value add to the community!!!!
Useful info there.
Subtle differences!
Interesting very informative channel wish I'd found sooner
On my crf450x dirtbike. I put a 480 big bore kit. It has a 4inch piston.
The 59 degree angle of Block helps the head flow at 18 degrees(Big Block Mopar are 15 degrees) from factory , which would be race head for Chevy.
It’s like a 883 versus a 1200. 😃
Nice Video !
Thanks!!
Wonder if the measurements from the crank center to the deck is the same.
Dude thanks for a awesome channel, your videos are helping my future build. You need to get the bugs worked out of Mr. Jones and go race Uncle Tony
If mopar had a decent head they would be a lot nastier, a 360 has a few things sbc guys do to make them hall butt, they've got the 6 1/8 inch rod, the 18° value angle, just no flow to work with these attributes!!! Plus they cost sooooo damn much more, but I still love'em!!!!
Yup. Indy does some good things but Mopar has been the stepchild for too long. I love them anyway, obviously. Happy hot rodding!!!!!
the magnum head IS decent for stock. runs right with a vortec. just bowl port and clean up the casting slag, and youre good to go. 210-220cfm @.0500 lift STOCK(before bowl work). thats good for 400hp.
The 360 mag has different settings for duration, lsa, lift etc on the cam than the 318
On the older LA engines wasn't the connecting rods on the 318 lighter weight than the 340/360 ones?
That was a great video! I wish I had a house so I could start working on my Valiant. I think we are going to be living in an apartment for a year or more. One day I will get there. In the mean time I will enjoy all of your adventures with your MoPars. Thank you for the lesson. It was cool to learn all of that about the 318 and 360. Keep it up. I bet a 318 stroker would be a fun build?
Where do you live Jeff?
@@TheGasTap In Shawnee Kansas. Pretty much KC Kansas. My wife and I live in an apartment near her sister. My parents live about 2 and half hours away from us near Wichita Kansas. My 1969 Plymouth Valiant, 1973 Newport, and my little brothers 1972 New Yorker and his 1968 Plymouth Satellite station wagon are all at mom and dads house near Wichita.
Nice line up. Wish you were closer so I could work on them with you some.
@@TheGasTap thank you for saying that! One of these days I will stop by and we can check out our Valiants together. I sure hope you hang on to your Valiant. I have huge plans to put a jeff schwartz performance full chassis and a indy heads 572 super street hemi in my Valiant. Make it full built. All custom interior. I would definitely love to team up with you some how one of these days. My Navy retirement date is coming up soon and I am itching to get a house around here and start my own shop. I would definitely make the drive to come visit you once I can get things going. You are very inspiring and I love that you like MoPars and you have a 1969 Valiant! So cool Alex 😎🇺🇲🇺🇲🇺🇲🇺🇲🇺🇲🇺🇲🇺🇲
🇺🇸
Fairly certain the 5.9s have a 11cc dish in em. I may be wrong tho!
thank you sir , i like AMC 360 more :)
This yt channel is awesome
360 la engine packs just as good a punches that 360 Magnum I know I've owned both
You can tweak those 318 to make alot of power.
I had 360 in my little red express in my pickup I thermo guard had the headers ran them out in front of the real wheels loud straight pipes true duals had posatrack 4.10 ratiocam was a fire ball hydraulic this truck would scoot think was eldablock travhslaimtsle miss that ol pickup
U should do the differences between la blocks
Cars cool brother
When i compared 360LA to 5.2Mag i noticed that LA had thicker walls under the main caps/more material. I wonder if it is the same with 5.9 magnum?
I’m not sure. It’s been a while since I’ve seen a LA engine.
To the best of my knowledge early magnums 93-95ish 5.2 and 5.9 used leftover stock LA blocks for the magnums, ( so on early magnums there should be no difference between 360LA and 5.9 magnum) andsome still had the oiling hole for the heads/valvetrain in them, they were tapped and blocked off, later blocks still had the boss for the oil, but was never machined.
Somewhere around the late 90's the casting was change and the magnum blocks are a bit lighter/ thinner.
👍
Are the L A bell housings mounts the same as the 2000 magnums? I have a 1984 dodge pick up and I would like to put a newer injected magnum in it. Mine has a manual 4 speed transmission.
Same bell housing and motor mounts.
Heres my question... are the 318 magnum pistons that are factory std bore taller then the old factory la pistons? Ive got a 318 magnum block laying around but im building a la block with the 302 heads?
I’m not sure but I’m sure someone here will have the answer for you.
How does a 340 compare?
is there a difference with the bolt spread on the main caps just curious if you can machine the 318 to fit the 360 crank or if its better to turn down the 360 crank to fit. I got a poly 318 and and like to try and find a junkyard 36 magnum crank for a budget stroker build
I would think boring the mains for a bigger crank would weaken the mains unless you are converting to bigger main caps as well. ???
i swear i saw adapter bearings or something to put a 318 crank in a 360.
Mopar performance and summit racing sell cast 360 cranks that are machined and balanced to bolt into a 318 (magnum or LA)
You can use the same stock LA connecting rods with shorter pistons. The magnum connecting rods usually need to have the small end machined for clearence with shorter pistons.
Both the 360 LA and magnums are externally balanced engines, and both are weighted differently. (LA harmonic balacer and flex plate or torque converter, will not balance a magnum, and vice versa)
Both the 318 LA and magnums are internally balanced, so are the aforementioned cranks, and the last time I checked the cast cranks are going for around $300.00 US.
@@sidewyndersshed1676 thats awesome thanks for the info ill have to check it out
@@jessewalker5413
No problem.
Decades ago it was common enough for race shops to take a 360 crank and turn down the main journals to fit a 318, but, nowadays it costs more to have one turned, and balanced properly than to just buy a ready to go one.
And with a stock 318 bore, the 360 crank will give you around 344cid.
I am not overly familiar with a 318 poly, so I don't know if there is an affordable good style aftermarket piston for that engine.
Good luck to you and if you don't mind, let us know what you find out.
Incase someone else is trying to do what you are doing.
👍
I wonder which one will rev faster to get into boost? I was thing 318 small piston but the 360 is lighter.
I like testing. That’s my channel.
both is fine, but 360 would probably build boost quicker. bigger bore, lighter piston.
@ The gas tap does mopar or anyone sell the the heavy duty magnum block for racing or off road use anymore? I thought that it was made of aluminum? ,but i cant remember Can you possibly shed some light on this ?
I don’t think the R3 block is available new anymore.
Hughes has the Ritter but I’m not sure how good they are.
www.hughesengines.com/TechArticles/1ritterracingsmallblocks.php
Hello thank you for the video ,? Can you change a 5.2 magnum for a 360 magnum will it fit and timing the same ?
Everything is the same except the flywheel/flex plate and the harmonic balancer.
Thank you very much
I have a 1968 Plymouth satellite with the 318 it needs to be put in the machine shop and it’s going to take some time but I have a 360 rigged up on the old arrogation pump would it swap out temporarily just fine until I get the 318 back from machine shop? Would appreciate some help from some old school Mopar Gearheads
I have an engine swap video. It’s easy to do. You’ll like the 360 better.
@@TheGasTap Thank you wasn’t sure about the ability to enter change first time getting into Mopar if it was an old Ford 80s and back I would know
so they made 2 different castings for the blocks AS in freeze plugs 318- 60 we call freeze plugs welsh plugs in Austraya just a little note of interest . that would be expensive? so la 273-360 theyd be same block? ive never looked into it BUD.
The LA and magnum are very slightly different.
LA,318,340,360, are all different castings, I don't know about the 273.
Early magnums used left over LA blocks, with the oiling hole for the heads/valvetrain tapped and blocked off, or later on the boss is still there but was never drilled.
Somewhere in the late nineties the casting was changed so that the magnum blocks are slightly thinner and lighter than the LA
@@TheGasTap COOL
@@sidewyndersshed1676 Thanks Bud great info.
Do you have a video on how and why you got into magnums. Magnum vs La
th-cam.com/video/LFqrkNYOni0/w-d-xo.html
@@TheGasTap thanks. At some point I will get to my 69cuda. When I do I will beat the snot out of it. Hence needing a replacement for the 318. Thanks for all the content.
@@stannelson2582
The 318 LA timing cover, harmonic balancer and all accessories will bolt on a magnum 5.2 (318).
If you want to keep the v belt look, and if you want to keep a mechanical fuel pump, magnum engines have a "short nose" camshaft that does not have an eccentric for the fuel pump. But summit racing sells an adapter so you can use the mechanical pump, or an LA "long nose" cam will fit right in.
Don't the 318's have a little different cam, with a little higher lift? I read that somewhere...
I read that too. My engines had the same cam.
So how much horsepower are you trying to make with this engine?
Hopefully 400ish.
Aahhhhh
So, 100% of the oil is filtered? And oil filter sees all the oil pressure.
Aren’t the magnum oil filters smaller than the old LA?
Same filter
What does the "magnum" designation signify?
I haven’t found sound reasoning for it but i assume just carrying on the small block with a gen 3 name. A...LA...magnum
Please advise if you find out more.
I knew the LA designation for 273 c.i. but am baffled by magnum, especially since they can be 318 or 360.
Yeah. “Light A”.
Not sure on the magnum though
trying to pull off the old big block mopar "magnum" moniker. just marketing.
I had a 360 motor in my Chrysler Cordova I really wasn't that impressed with the motor I think 340 is by far the great motor. My brother had a Plymouth Fury 3 was a old cop car with a 440 Mag in it pursuit motor that thing turned on on the highway
360 magnum is my favorite engine. Good power for cheap.
The oil pans and main seals are different...
Main seals are different. Oil pans are the same. These are magnums. Not LA
@@TheGasTap Oh ok, thought they were LA
Thumbs up are at 383, hesitant to click, will wait until it hits 391! This is what I want to hear, Thanks.
Lol
Cananidian Mopar are different made alot Candia molars talk about them 275 we're good
Cubic inches win.
Whoever left the thumbs down must drive a ford
Never fails. Negative Nancy always pops in.
The GM guys are usually the haters.
Hate and Fear. The most primitive of emotions.
i beat a 340 with my 318
You wish
Motors were good but the cars were not great
La 318 pans don't fit magnum.
Correct.
magnums use 360 pans.
any one have a 340 for sale with a727 tranny
Wooo.. that’s gonna be tough to find.
Email Brian and see what he has. Briant4mopars@yahoo.com
I have a 340 bare block with one sleeved cylinder. I was going to build it, but happened upon a free 360 Magnum complete, running engine. I'm located in Iowa for reference.
A 340 would eat up a 318 & the 360
YES!!! You are going to provide us with a 318/340/360 dyno shootout? Same heads, cam, intake and compression ratio!!! I’m so looking forward to this!!!!
Better watch @richardholdener Cubes win, especially for those of us that have less than 1 million to spend on the setup.
@@TheGasTap I ran some numbers, did some math, results show the 360 displaces more cubic inches than the 340.
a 340 would also eat up your wallet.
ill take a 318 over a 340 any day. i never cared about them. why build a 340 when i can build a 360?
Got a question. I’m looking to do a Magnum swap in my 86 D100. I have just recently read where the magnum engines have their pistons over .060 down in the hole at TDC. Being that far in the hole plus the head gasket thickness, leaves zero quench. Have you ever addressed this with any of your builds? If so, how? Decked the block, taller compression height pistons, etc?
Thanks!
I haven’t done any machine work to my engines and they all run great. My d150 runs 12.71 in the 1/4 with a cam and carb intake. 3500lbs. 3.55 gear
@@TheGasTap Cool deal. Thanks for the reply. Love the videos! Take care.
It's better to build the 318. Bore it to 4" and yes it will take it and it's basically a 340 with AM heads
Everybody so hard on the 340 because they went broke building them. I'm a car guy and love mopar stuff; but LS still best motor for building.
Lol