Originally Posted by Moparteacher
I wouldn't hesitate. Numbers look good to me. Are they optimum...probably not, but well within tolerances. Are you running nox or forced induction? If so you may need additional clearance depending on what the pistons measure. They probably measure 4.3175 or there about giving you .0045" to .0065" if your piston is machined .0025" under std. bore of 4.32.

I've run a similar TRW slug with .008" with no issues.


No nitrous on this one, just a naturally aspirated M1 dual 4bbl tunnel ram setup.

And either a Hughes Whiplash cam I have on hand, or possibly a Comp Thumper cam. 906 ported heads I had on my 383, Thorley tri Y headers, dual chamber mufflers.

Looking for a fun street build for cruising and such.

3.73 or so gear ratio, 727 manual valvebody, something that will turn the tires, and still be able to run on the highway to get to town.

May even dig out the "quiet" gear drive I bought a couple decades ago.



Join the Penguin Liberation Front!!
Stop the Hippo Occupation!