Thread: 6 inch rod 357CID SBC
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05-24-2005 07:16 PM #12
I have $410 (includes guide plates and studs) combined in the heads plus cost of valves, springs, shims, and locks.
Yeah I could have bought a set of Dart heads ready to run. But 3 years ago some of the nice heads weren't available.
I had Ross make the pistons they are flat-top with a dish and valve reliefs which equal 10cc total each piston, set-up for 6" rods.
With a .040 gasket it should be real close to 10.5:1. If I had not had them cut the dish the pistons would have yielded 11.2:1 (which I wasn't sure I could get away with on pump gas).
My wet compression test (forgot to prop the throttle open) is 210 PSI on all 8 cylinders. That is wet or dry - doesn't matter.
The only thing I had Al's custom engines do was machine the back of my Edelbrock cam gear to accept a torrington bearing press-fit. He was a patient guy, and gave me some pointer during my build. He's a professional race engine builder and owns and operates his own shop, so I know I was getting info from the best source.
I am spinning a set of 33x12.5 Firestone Destonation tires on 3.55:1 gears and getting a 0-60 time in just over 5 seconds. This I know from my Nordskogg digital gauges which are calibrated with a marked mile.
My engine has not been on a dyno, but the numbers speak for the engine. I have to be cranking out that much power to get a 0-60 time like that on a 4300lb vehicle. Don't even ask me about 1/4 mile time. A Wrangler is a short wheelbase flying brick, at 95mph the wind resistance is too great. I put four overhead off road lights on top and dropped my gas mileage by almost 2 miles to the gallon. But is sure is fun to smoke Vettes and Stangs and anything else that will play.
So - Edelbrock 750 or Speed Demon 750?
GPZILLA - anything slower is just a speed bump.





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A belated Happy 78th Birthday Roger Spears
Belated Happy Birthday