Stock rockers on 625 lift cam.
#1
Stock rockers on 625 lift cam.
Engine is a stock LS1 w/ 68k miles.
Looking into a Lunati 60516 camshaft with following specs:
625 i/e Lift
219/222 on duration
Am I ok to stay with stock rockers or do I need to upgrade to rollers, and if upgrade is needed, this is the direction I am looking towards.
I have looked into the 2 following manufacturers for replacement:
1) Harland Sharp non-adjustable
2) Scorpion non-adjustable
Both are priced the same but didn't know if one was superior to the other. Also if they are going to run into interference w/double valve springs.
I saw there are adjustable versions of these rockers but was not sure if I need that option in my application since there is a $200 price difference.
__________________
Looking into a Lunati 60516 camshaft with following specs:
625 i/e Lift
219/222 on duration
Am I ok to stay with stock rockers or do I need to upgrade to rollers, and if upgrade is needed, this is the direction I am looking towards.
I have looked into the 2 following manufacturers for replacement:
1) Harland Sharp non-adjustable
2) Scorpion non-adjustable
Both are priced the same but didn't know if one was superior to the other. Also if they are going to run into interference w/double valve springs.
I saw there are adjustable versions of these rockers but was not sure if I need that option in my application since there is a $200 price difference.
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#3
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Engine is a stock LS1 w/ 68k miles.
Looking into a Lunati 60516 camshaft with following specs:
625 i/e Lift
219/222 on duration
Am I ok to stay with stock rockers or do I need to upgrade to rollers, and if upgrade is needed, this is the direction I am looking towards.
I have looked into the 2 following manufacturers for replacement:
1) Harland Sharp non-adjustable
2) Scorpion non-adjustable
Both are priced the same but didn't know if one was superior to the other. Also if they are going to run into interference w/double valve springs.
I saw there are adjustable versions of these rockers but was not sure if I need that option in my application since there is a $200 price difference.
__________________
Looking into a Lunati 60516 camshaft with following specs:
625 i/e Lift
219/222 on duration
Am I ok to stay with stock rockers or do I need to upgrade to rollers, and if upgrade is needed, this is the direction I am looking towards.
I have looked into the 2 following manufacturers for replacement:
1) Harland Sharp non-adjustable
2) Scorpion non-adjustable
Both are priced the same but didn't know if one was superior to the other. Also if they are going to run into interference w/double valve springs.
I saw there are adjustable versions of these rockers but was not sure if I need that option in my application since there is a $200 price difference.
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#7
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IF you were going to do any aftermarket rocker.. it would have to be some High Dollar Adjustable Jesel's... its the only thing better than stock...and its a lot more expensive than stock with a Trunion upgrade..
you can get the Trunion upgrade from comp an press them in yourself
or you can send your stock rockers to one of many vendors on here that do the service..
most of them will allow you to buy the upgraded rockers, and send in your stockers when swapped for a core charge return.
you can get the Trunion upgrade from comp an press them in yourself
or you can send your stock rockers to one of many vendors on here that do the service..
most of them will allow you to buy the upgraded rockers, and send in your stockers when swapped for a core charge return.
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#9
Thanks for the clarification. Someone had mentioned to me the trunion upgrade but thought that was just to fix the common problem with the needle bearings coming out.
Reason I started this thread was I read in what I remember to be a Hotrod magizine article sometime last year and it stated the stock LS rockers were good to .550 lift but after that the sweeping motion on the valve end would get larger the higher the lift and could wear out valve guides prematurely. Thats why I posted here since I knew the experts here could shed some light on this.
Reason I started this thread was I read in what I remember to be a Hotrod magizine article sometime last year and it stated the stock LS rockers were good to .550 lift but after that the sweeping motion on the valve end would get larger the higher the lift and could wear out valve guides prematurely. Thats why I posted here since I knew the experts here could shed some light on this.
#14
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They may have these for LS1 heads but you would need the stock rockers pedestals machined off...
#15
12 Second Club
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I ran stockers w/ Comp trunion upgrades on .621" lift without problems. I agree with above, most aftermarket LS rockers are actually downgrades for various reasons.
Ive run T&D Shaft, SLP 1.85s, Comp 1.85 Pro mags, and Scorion rockers on various engines, All of which had at least some downfall, thats why I stuck to stock rockers!
Ive run T&D Shaft, SLP 1.85s, Comp 1.85 Pro mags, and Scorion rockers on various engines, All of which had at least some downfall, thats why I stuck to stock rockers!