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06-01-2015 10:32 AM #4
CHR Member
- Join Date
- May 2003
- Location
- Zephyrhills, Florida, USA
- Car Year, Make, Model: '32 Henway
- Posts
- 12,423
Not a fan of using rocker ratios over stock. Duration trumps lift by a bunch and I don't want to load the valvetrain any more than necessary. Here's a build that is similar to yours....
Big Block Cylinder Heads - Big-Block Cylinder Head Test - Car Craft Magazine
I would have built a little more static compression ratio into your motor. With aluminum heads, up to 10.5:1 works well on pump gas without detonation if you pay attention to the squish (0.035" to 0.045"). Your 11-433-8 cam closes the intake valve at 44 degrees ABDC @0.050" lift, making a dynamic compression ratio of 7.99:1 when calculated with your ~9.5:1 SCR, so the motor wants more static compression ratio to run that cam. 10.5:1 SCR would have made an 8.815:1 DCR, generating considerably more power and still good to go on pump gas.
.Last edited by techinspector1; 06-01-2015 at 10:35 AM.
PLANET EARTH, INSANE ASYLUM FOR THE UNIVERSE.
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time for a new forum to visit. when they sold sr.com it went down hill fast. no more forum just a cheap site selling junkie cars. the canadians killed hr.com. mods are real pricks. as with any site...
Where is everybody?