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- เผยแพร่เมื่อ 6 ก.ย. 2024
- Richard Holdener after changing cam in his 454 now, shows us step by step how to change the springs.
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Hey Richard nice video,I have this cam and spring combo in my gen6 454 works and sounds great,BUT you need to inform the viewers that the rotator elimenators do not seat fully rite out of the box,machine work or touch up on the cyl.head or rotator is needed or spring installed hight will be incorrect,also pay attention to spring retainer to valve seal contact,again machine
work ,cut down guilds and use posi seals
Thanks for the info. Plan on doing this to my 7.4 and my Sons 7.4 his is factory 7.4 3/4 ton pick up and mine is a 97 5.7 that im changing to 7.4
I see this is an old comment, but I`ll ask anyway. Why do you need to replace the rotators? Is there a height difference or can you run these springs with or without them?
I love your videos 😍 and you are motivating me to work on my 454 Chevy suburban. It have 230k on it now 😂 . And I want 500hp out of it . Any recommendations ? Heads, cam, spring etc? Your input will be gladly appreciated bud 👍
Anyone else order comp cams cam and lifter package and check the lifters to find them machined like crap? I sent a set back to them called them and told them to check the next set before they sent them out. They said they checked them and they checked out fine. I get them check them and they're not fine. I sent them to a machine shop to be checked and corrected. All of them had to be redone. Quality control is not there. Check your stuff guys. I ordered some of there lifters before this and they took out my cam. So dumb me ordered more parts from the same place and got the same results. But this time i tripled checked them and had them corrected. All in my dime. Not a very pleasant experience. Parts now days really do suck.
The correct height for the #26120 Beehive valve spring for a big block Chevy is 1.88"@155# or 1.90"@147#. Maximum valve lift is .590"/.600" Comp Cams used to re-box these springs from PAC Racing springs. The set I run on my Edelbrock RPM angle milled heads[100cc semi-open] are a batch from PAC, actually I bought two boxes. I use these springs with a custom ground Isky solid on a Pro55 cam core. 272* int/278* exh @ .020" 240*/246*@.050" with .320" lobe lift, 108* LSA. I set the lash at .020' hot and net lift with a 1,73 stainless rocker is .530" These are really good springs with my setup. I have the rev limiter set to 6,000rpm (for now) and the engine is smooth as silk all the way through the entire rpm range. From my experience, these springs should easily handle closer to 6600 rpm. Go to PAC Racing Springs, they have every spring for every application, and they are made in the USA!
+Viking Mike My apologies for double posting. I am tired, then again, we're ALL tired.
I just bought a cam motion cam for my l29 because none of the biggest cam manufacturers in the United States can grind me a cam due to not having a blank in stock but regardless of all that they recommend a 595/578 grind to go with my setup but no one really knows a whole lot about the stock l29 heads other than the fact ik I have to upgrade my factory springs can I run that big a cam with flat tops in a gen 6 I’ve heard that there’s very lil room for clearance so I’m hopeful it works out
Hello my friend, I would love to know if you can tell me what's the max lift & RPMs these springs can handle, here are the springs specs: seat load 136 lbs @ 1.800'' , open 412 lbs @ 1.170'' , spring rate 438 lbs/in and coil bind 1.125'' , I have a 2010 Jeep Grand Cherokee WK1 SRT8 6.1L, big thanks in advance
Right about 2:19 in on your video when tapping the retainer with the hammer it looks like a keeper was about to pop out on the no. 3 exhoust valves? Did you almost loose one there???
Wouldn't u need to find TDC to set the right torque spec for the valves?
That keeper on #3 exhaust.
So I’ve seen you explain valve float on the dyno graph. How about valve bounce on the seat under boost? Is there a way to identify that on a graph? Or does it simply look the same as valve float?
can you offer a link to buy this tool please?
I ordered COMP Cams 612-16 Set of 16 - 10 Degree, 3/8", Single Groove Locks w/ Lash Cap Recess for my cam swap on my 98 c3500. Did I order the wrong ones? Do I need the part number in this video?
did you have the air in the cylinder when you hammered the retainer to loosen the keeper?
thanks
no cam in this engine? there was no load on any of the springs when the retaining bolt was buzzed off the rocker arms.
You didn't measure spring height.
That easy huh. Nice!!
Man i love these videos!
Thanks for the video. I have a custom ground cam in my car and I don't know what the specs are, is there a way to measure the cam and determine if I need aftermarket springs for it? I'm currently running it with stock small block chevy springs. My engine is a 350.
I imagine if you took it to a performance shop then can get you the details we have one down the road where I live and he does custom regrounds.
The valves dont stick out the keepers but about 10 thousnabd. Why??
Missed a chance to illustrate a keeper that was not seated
What about checking the height? Wouldn't you need to make sure the installed height is correct for that particular spring? I searched TH-cam for info on getting correct height. What gives?
+Preston Edmonds The correct height for the #26120 Beehive valve spring for a big block
Chevy is 1.88"@155# or 1.90"@147#. Maximum valve lift is .590"/.600"
Comp Cams used to re-box these springs from PAC Racing springs. The set
I run on my Edelbrock RPM angle milled heads[100cc semi-open] are a
batch from PAC, actually I bought two boxes. I use these springs with a
custom ground Isky solid on a Pro55 cam core. 272* int/278* exh @
.020" 240*/246*@.050" with .320" lobe lift, 108* LSA. I set the lash at
.020' hot and net lift with a 1,73 stainless rocker is .530" These are
really good springs with my setup. I have the rev limiter set to
6,000rpm (for now) and the engine is smooth as silk all the way through
the entire rpm range. From my experience, these springs should easily
handle closer to 6600 rpm. Go to PAC Racing Springs, they have every
spring for every application, and they are made in the USA!
what's the part number for that valve spring compressor?
+bigmike5012 The COMP Cams Valve Spring Compressor is part no. 5462. Thanks!
Thanks!!
@@Compcams1976 wrong part number for that tool in this video
Bad ass
The 616-16 Retainers won't work... It puts the valve flush with the retainer as the are + 0.050 retainer. How do I know? Because I wasted my money on these after watching this video... You can clearly see this at 4:54 on this video, But comp says they should work maybe??? lol.. Why did the super chevy magazine article of this same engine have different lash cap style retainers, pic 11? Be real nice to pass that info on... Funny you didn't list the new part/any part number in that article? www.superchevy.com/how-to/engines-drivetrain/1506-how-to-pick-up-big-power-on-a-junkyard-454-with-simple-cam-swap
What did you end up doing? I need the correct P/N combo
@@BigBlockCaprice I used a lash cap style retainer +050 from Crower. PN 86111X1-16 . They are 3/8's for a 10 degree. Not easy to find company's with a +050 with a lash cap top... I found them on E-bay. Basically same thing Richard did...
@@deadrat1361 hey there james , i had a quick thought and wanted your opinion with the reluctor wheel kept in place shouldn't that move the stock pulley the 100th? inch foward to make the older style pulleys v belts work with the gen 6 ?? Instead of swaping out the gen6 for gen 5? Building one right now thanks justin 👍
616 keepers don't work.
Push rods? Ugh... So old now!
ThePugMonkey, Yet the most powerful V8 engine’s on the planet use them. 😎👍🏻
no one likes you
Who is this Mr Clean wannbe goon?
shut up nigga
Them bee hive springs are junk
the fact that you did not remove the bolts of cover in a X pattern tells me that you should go back to basics, basic mechanics...
How to adjust new valves
Like that makes a bfd on a valve cover
It’s a valve cover not a head gasket, barely any pressure on them at all as long as your replacing the seal anyways it doesn’t make a difference what pattern you use. Don’t need to go to school to put valve covers on or take them off.