how high can I rev this valve train?
07-21-2013, 09:30 PM
#1
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how high can I rev this valve train? I have a build thread up already but figured I would make another thread on my valve train to see if I am headed in the right direction for a high reving valvetrain (7000-7200)
370 iron block
Stock LSA heads with upgraded inconel exh valves
Brian Tooley .660 kit and Pushrods
239/243 620/620/ 115+4
Holley hi ram 92mm
S480 race cover 96mm 1.32AR
I am contemplating doing the comp trunion upgrade on my stock rockers and wanted to see what everyone thought of them or can i do without them?
Second question is what would this combo want to be shifted at?
370 iron block
Stock LSA heads with upgraded inconel exh valves
Brian Tooley .660 kit and Pushrods
239/243 620/620/ 115+4
Holley hi ram 92mm
S480 race cover 96mm 1.32AR
I am contemplating doing the comp trunion upgrade on my stock rockers and wanted to see what everyone thought of them or can i do without them?
Second question is what would this combo want to be shifted at?
07-21-2013, 10:34 PM
#3
The LSA intake valves(120g)are WAY heavier than L92 valves(109g)and the LS3(91g)valves are 18g lighter than the l92!!!
#1 priority for you is get some lighter intake valves!!!!
I turn my L92 headed engine up to 7200.
Call Brian Tooley and ask him about which intake valves to run- since you have his spring set.
2nd, your cam is too big, you could take 10 degrees out of both lobes and still have a big cam for what you are trying to do. While you have Brian on the phone get him to spec you a cam.
For reference my 6.0 S480 combo made peak power at 6700 with a 227/235 114+4 cam, and a vic jr intake, your hi-ram should be better in the midrange, and rpm just as well as the vic jr.
#1 priority for you is get some lighter intake valves!!!!
I turn my L92 headed engine up to 7200.
Call Brian Tooley and ask him about which intake valves to run- since you have his spring set.
2nd, your cam is too big, you could take 10 degrees out of both lobes and still have a big cam for what you are trying to do. While you have Brian on the phone get him to spec you a cam.
For reference my 6.0 S480 combo made peak power at 6700 with a 227/235 114+4 cam, and a vic jr intake, your hi-ram should be better in the midrange, and rpm just as well as the vic jr.
Last edited by 3pedals; 07-21-2013 at 10:40 PM.
07-21-2013, 11:24 PM
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The LSA intake valves(120g)are WAY heavier than L92 valves(109g)and the LS3(91g)valves are 18g lighter than the l92!!!
#1 priority for you is get some lighter intake valves!!!!
I turn my L92 headed engine up to 7200.
Call Brian Tooley and ask him about which intake valves to run- since you have his spring set.
2nd, your cam is too big, you could take 10 degrees out of both lobes and still have a big cam for what you are trying to do. While you have Brian on the phone get him to spec you a cam.
For reference my 6.0 S480 combo made peak power at 6700 with a 227/235 114+4 cam, and a vic jr intake, your hi-ram should be better in the midrange, and rpm just as well as the vic jr.
#1 priority for you is get some lighter intake valves!!!!
I turn my L92 headed engine up to 7200.
Call Brian Tooley and ask him about which intake valves to run- since you have his spring set.
2nd, your cam is too big, you could take 10 degrees out of both lobes and still have a big cam for what you are trying to do. While you have Brian on the phone get him to spec you a cam.
For reference my 6.0 S480 combo made peak power at 6700 with a 227/235 114+4 cam, and a vic jr intake, your hi-ram should be better in the midrange, and rpm just as well as the vic jr.
07-22-2013, 12:00 AM
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Yea I do realize the cam was on the big side but I already had it so I figured I would just try it and have something to compare it to when I ran a custom grind.