My last build was a 427 stroker LS, it has new AFR 245’s and Jessel shaft mount rockers. First off the rockers were so heavy that max power was at 5600 RPM where it should have been at least 6800. So I used it like that for the season and when I disassembled to inspect there were marks on most of the rocker arms where at some point they were rubbing the retainers. I have since removed the 1300 hundred dollar pain in the ass Jessel shaft mount rockers for the tried and true stock “style” LS rockers that 99% of the LS community uses. All better.
Thanks Mate. Great information on a touchy subject. As I’m accumulating many parts for my LS the type of rocker I should use is one of the last choices. Stock LS rockers with a COMP Cams trunion should be ok for my application. Thanks for your input and knowledge on these components. Support from 🇦🇺🇦🇺🇦🇺🇦🇺
its great that you cover so many areas & test everything , saves people alot of time & money . i know you mostly cover american v8 engines , but your information & knowledge can relate to other pushrod engines . Im building VW Type 4/porshe 912 big bore stroker possibly supercharged . These have different type rockers
Regarding your comment on the oil in your truck losing oil pressure when it is time to change it; oil shears back with mileage. A 5W 30 oil is a 5 weight oil with viscosity inproves that get torn up in the close tollerances. I am working as money permits, on my 1966 SBF 289. I will be getting 1.9/1.55 valves from the LM7 Gen 3 Chevy in. Been thinking bronze guides but the Chevy guides could work also and seenm to stand up well. I got PAC dual valves springs with retainers and locks to fit the 8mm valve stems. I have a low mileage Engle cam I had installed in a 351W for a year or two. It is 210° @0.050, 256 advertized, 109 LCA and 0.472" lift with the stock 1.6:1 rockers. I purchased 1.72 Scorpion roller rockers to get the valve lift up to 0.500". This is installed in a 1940 Ford Fordor street rod. Just looking for snappy street performance, no racing. Thank you for sharing your experience.
50:27 the other truck intake is a ssr intake it looks like an early truck intake but has 4 bolt throttle body. Only came in ssr trucks short lived. Which makes them rare. But slightly better than the old truck intake
@@nathanvillarreal7937 all the 5.3 trailblazers I've come across have the trail blazer ss/ bread box intake. The SSR is a gen 3 truck intake with a 4 bolt 87 throttle body.
Richard, I have a 2000 GMC with 5.3 LS that I replaced with a 6.0. I upgraded to a Stage 2 camshaft with .585" Intake/Exhaust lift. When the engine was rebuilt the original rockers and push rods were reinstalled. Truck runs great but has what seems like a slight valve tick. I was told by engine rebuilder to replace rockers / push rods to quieten down. Not necessarily looking to get power but a quieter run / idle. What do you recommend as I have been looking at replacing with roller rockers. After listening to you I am rethinking what I should do to avoid additional costs / upgrades such as valve springs etc. Help
Not part of this subject but: Wil a central fuel injection unit offer the same intake cooling as a carb. application? Known that port does not but have seen no test on the effect of a above plenum based injection unit.
@@richardholdener1727 Thanks for the reply, contemplating using this kind of system on a single plane turbocharged application. Never have seen any testing on this kind of application so had no idea of effectiveness.
The trunnion upgrades are all false hopes... I did a trunion upgrade only to find 2 rockers spit out the needles and 3 more rockers were on the verge of failing...
I have a question I have an 06 Chevy Silverado with a 4.8 stock head stock bottom an a SS2 cam with a 340 pump, I just acquired an lq4 6.0 I was going to take my 862 heads and put them on it ,05 block put a gt45 single turbo on it just to have fun it's just a street truck, question is what's fuel pump should I go with looking to make 800 plus horsepower, it does still have the old 4l60 in it which I'm going to change to a t56, I was going to put the ring Gap 25 through the board? Any suggestions thanks
I have a question can I take 862 heads off my 4.8 and put them on my 6.0 lq4 without having an issue, I know it'll raise a compression but I got rid of my 317 heads they were garbage both had a crack
Hi Richard. Thanks for all of your great videos. In regards to your trading, you may consider checking out live traders channel. I got a ton of good trading education from Jared Wesley at live traders. He has great free lectures and a PTS trading course, which is excellent. I have no affiliation with live traders, but highly recommend them. Its the best trading course available. Good luck trading. Its harder with real money as emotions get in your way. Thanks again for your continued videos. I love big block chevys. Building an 89 4 bolt main 454 with oval port aftermarket heads. Can't wait to get her done.
Comp cams original trunnion “upgrade” is trash. Will wear out the trunions and pollute your engine. All y’all that say “mine are fine at xxx xxx thousand miles… did you really check the trunnion aka inner race!????
My last build was a 427 stroker LS, it has new AFR 245’s and Jessel shaft mount rockers. First off the rockers were so heavy that max power was at 5600 RPM where it should have been at least 6800. So I used it like that for the season and when I disassembled to inspect there were marks on most of the rocker arms where at some point they were rubbing the retainers. I have since removed the 1300 hundred dollar pain in the ass Jessel shaft mount rockers for the tried and true stock “style” LS rockers that 99% of the LS community uses. All better.
Thanks Mate. Great information on a touchy subject. As I’m accumulating many parts for my LS the type of rocker I should use is one of the last choices.
Stock LS rockers with a COMP Cams trunion should be ok for my application. Thanks for your input and knowledge on these components. Support from 🇦🇺🇦🇺🇦🇺🇦🇺
lots of good trunion upgrades out there
Maybe do a stock vs roller rocker test on a 6 liter LS with a 459 or 469 cam, show everyone if it's REALLY worth it.. 🤔
its great that you cover so many areas & test everything , saves people alot of time & money . i know you mostly cover american v8 engines , but your information & knowledge can relate to other pushrod engines . Im building VW Type 4/porshe 912 big bore stroker possibly supercharged . These have different type rockers
Regarding your comment on the oil in your truck losing oil pressure when it is time to change it; oil shears back with mileage. A 5W 30 oil is a 5 weight oil with viscosity inproves that get torn up in the close tollerances.
I am working as money permits, on my 1966 SBF 289. I will be getting 1.9/1.55 valves from the LM7 Gen 3 Chevy in. Been thinking bronze guides but the Chevy guides could work also and seenm to stand up well. I got PAC dual valves springs with retainers and locks to fit the 8mm valve stems. I have a low mileage Engle cam I had installed in a 351W for a year or two. It is 210° @0.050, 256 advertized, 109 LCA and 0.472" lift with the stock 1.6:1 rockers. I purchased 1.72 Scorpion roller rockers to get the valve lift up to 0.500".
This is installed in a 1940 Ford Fordor street rod. Just looking for snappy street performance, no racing.
Thank you for sharing your experience.
I love your videos and I learn so much from them!
Thanks Richard you have a great week this week sir see ya 😁
👍 I ran a 218 @0.050. comp high energy in a 355 sbc in a cj5 jeep. Great for the sand dunes & the trails. Got better mpg than the OEM 258-6.
I learned real quick that when camming a small block Chevy, roller rockers are a must. Stock Chevy rockers are only good for stock parts
I run BTR shafts on my dragster and bone stock rockers on my 5.3 street car. Dragster is .625 lift, 8100RPM
what rpm does it make peak hp? what intake mani?
@@asfatebecomes Holley Hi-Ram, 671, alcohol,
No idea on peak. Runs 180mph in 7.6 seconds
50:27 the other truck intake is a ssr intake it looks like an early truck intake but has 4 bolt throttle body. Only came in ssr trucks short lived. Which makes them rare. But slightly better than the old truck intake
Also came in 5.3 trailblazers
@@nathanvillarreal7937 all the 5.3 trailblazers I've come across have the trail blazer ss/ bread box intake. The SSR is a gen 3 truck intake with a 4 bolt 87 throttle body.
I have a 184GM Bowtie Block , you have any helpful knowledgeon that Block?
I wanted to ask the guy with the 3/8 pushrods if he had to relieve the heads
Richard, I have a 2000 GMC with 5.3 LS that I replaced with a 6.0. I upgraded to a Stage 2 camshaft with .585" Intake/Exhaust lift. When the engine was rebuilt the original rockers and push rods were reinstalled. Truck runs great but has what seems like a slight valve tick. I was told by engine rebuilder to replace rockers / push rods to quieten down. Not necessarily looking to get power but a quieter run / idle. What do you recommend as I have been looking at replacing with roller rockers. After listening to you I am rethinking what I should do to avoid additional costs / upgrades such as valve springs etc. Help
I WOULD NOT RUN AFTER MARKET ROLLER ROCKERS-I WOULD USE STOCK ONES-I WOULD ALSO CHECK PUSHROD LENGTH
Not part of this subject but: Wil a central fuel injection unit offer the same intake cooling as a carb. application? Known that port does not but have seen no test on the effect of a above plenum based injection unit.
THROTTLE BODY INJECTION? IF IT IS POSITIONED IN THE SAME SPOT AS THE CARB-IT WILL OFFER COOLING
@@richardholdener1727 Thanks for the reply, contemplating using this kind of system on a single plane turbocharged application. Never have seen any testing on this kind of application so had no idea of effectiveness.
What about Mooar sb and bb?
Has there been any reviews for the SpeedMaster DNA SBC shaft mount roller rockers arms?
I have not run those
I had a trunnion bearing failure on my 99 Camaro under 10k miles.
Does Aluminum Heads have Horsepower ratings per set?
Trunnion up grades are cheap insurance at $60-70 a set for LS / Vortec & super easy to install
I don’t know where that is at, but all the kits I’ve seen are at least $110 for a set. $200 for them already done for you.
@@jordantrujillo293 He's talking about the ones being sold on Amazon, but I wouldn't trust the quality. 😆
@@allanb3222 I wouldn’t trust the Amazon specials either.
@@jordantrujillo293 I had good luck, about 50k miles & still working
The trunnion upgrades are all false hopes... I did a trunion upgrade only to find 2 rockers spit out the needles and 3 more rockers were on the verge of failing...
Hi Richard I did the truck norris Cam in my 4.8ls I was wondering what trunnion kit you recommend ? it's in a 2006 chevy 1500 thanks
LOTS OF GOOD ONES
I was thinking the btr v2 trunnion kit or what would u recommend?
Can you run a sloppy stage 2 cam in a stock 6.0 with 317 head without getting a trun
no
@richardholdener1727 Do you have any suggestions on the cams that I can run in a stock 6.0 that don't require tuning
What do you think is the best low rpm torque cam for a 5.3 with a turbo?
TRUCK NORRIS WORKS-SO DO LOTS OF OTHERS
I have a question I have an 06 Chevy Silverado with a 4.8 stock head stock bottom an a SS2 cam with a 340 pump, I just acquired an lq4 6.0 I was going to take my 862 heads and put them on it ,05 block put a gt45 single turbo on it just to have fun it's just a street truck, question is what's fuel pump should I go with looking to make 800 plus horsepower, it does still have the old 4l60 in it which I'm going to change to a t56, I was going to put the ring Gap 25 through the board? Any suggestions thanks
not sure on pumps for specific applications
I have a question can I take 862 heads off my 4.8 and put them on my 6.0 lq4 without having an issue, I know it'll raise a compression but I got rid of my 317 heads they were garbage both had a crack
Went roller tip Comp for the factory valve cover clearance on a ZZ1 small block. Zero clue of hp difference with .500 lift 5500 rpm engine
Have you run any of the chinese sloppy copy cams yet? I've got a knock-off 1839p that is going in a flat top 5.3 I am building.
NO SIR
Ever Seen what happens when a cam fails?
@@needmoreboost6369 More than once. I’m doing it for science.
Excellent Sesame Street reference
Personally I blame John Woodworth
hehe
are the ls3 trunion upgrade good for my brawler ls3 cnc ported heads and i gotta 6.2 forged 376 ci
or do they tear up blocks
yes they work
Hi Richard. Thanks for all of your great videos. In regards to your trading, you may consider checking out live traders channel. I got a ton of good trading education from Jared Wesley at live traders. He has great free lectures and a PTS trading course, which is excellent. I have no affiliation with live traders, but highly recommend them. Its the best trading course available. Good luck trading. Its harder with real money as emotions get in your way. Thanks again for your continued videos. I love big block chevys. Building an 89 4 bolt main 454 with oval port aftermarket heads. Can't wait to get her done.
Should you upgrade? YES, ALWAYS!!!!!!!
Comp cams original trunnion “upgrade” is trash. Will wear out the trunions and pollute your engine. All y’all that say “mine are fine at xxx xxx thousand miles… did you really check the trunnion aka inner race!????
CHE> everything else