430" F710 drag engine
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The FED 10 degree F710's require a custom piston in many applications. Valve centers are moved. At a MINIMUM, I would check radial clearances using off the shelf pistons, but many piston suppliers have engineering specs that differ from std. LS7 piston pockets. Valve angle is normally not the problem.
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Domes change the game vs. a SBE short block.
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Domes don't Change Nothing...cut the space if Needed on Either side, they sell a Piston for that head. Hands on... LMAO. Custom + 12 Dome tops do the same thing.
intake & Exhaust needs x amount of Clearance with Valve drop being Factored in... Clay on Pistons with a spin to see how much clearance We've got. Good Math will be good with Actual measured Spec's also and should be Close to what's Seen with the Clay on Piston Physical See it Method.
Hands on LMAO...don't need to touch Something to Know something. I could put my own engine together...I don't want or need the tools.... I'll pay.
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Carrillo sells a On the Shelf + 10cc Dome top For a Ls3 "15" degree head. At 62 cc gives you 14.7 compression
It'll also work With a Ls7 head @ "12" degrees with + . 800 lift ...We know the Free Drop, Cam Events and Valve Clearance needed and how Much material is in the Dome...Ls7 head has the same 62cc Chamber
We can do it your way to Verify, the Math. Then cut it.
🤫
I know a little something guy's.
It'll also work With a Ls7 head @ "12" degrees with + . 800 lift ...We know the Free Drop, Cam Events and Valve Clearance needed and how Much material is in the Dome...Ls7 head has the same 62cc Chamber
We can do it your way to Verify, the Math. Then cut it.
🤫
I know a little something guy's.
Last edited by Corona; Jul 1, 2021 at 10:28 PM.
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My Fault Helicoil.....they all seem the same once we get over the Hump... Thought this BookMark was U until I ......
https://www.yellowbullet.com/threads...o-fyi.2627598/
https://www.yellowbullet.com/threads...o-fyi.2627598/
Last edited by helicoil; Jul 15, 2021 at 12:32 PM.
Working the manifold now, needs more CSA in the runners/throat area and I am also swapping the camshaft for something larger to raise the peak. Still going to be lift limited with the 1238X springs and 1.800" installed height.
PSI 1581 ML springs and +.050" retainers, and you got .850" lift. That should do it.
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