We built a 505 with one of the first SGI crankshafts that were available. It was supplied by KRE with one of their blocks, 505cid, and makes up near 750hp. The cranks was spot on in every area and didn't need to be touched, just plug and play. It has lived a good life at that power level, car runs into the high 9's.
We had the engine out to be freshened up last year after it destroyed the oil pump drive. The cranks actually hit the drive and busted it up pretty good. The cranks was in mint shape and all the bearings were fine. We cleaned up the pieces, rolled new rod bearings in it, new valve springs, replaced all the cracked Scorpion rocker arms with Crower Enduro's, and right back in service......Cliff
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If you can read this, thank a teacher. If you can read this in English, thank a Veteran!
https://cliffshighperformance.com/
73 Ventura, SOLD 455, 3740lbs, 11.30's at 120mph, 1977 Pontiac Q-jet, HO intake, HEI, 10" converter, 3.42 gears, DOT's, 7.20's at 96mph and still WAY under the roll bar rule. Best ET to date 7.18 at 97MPH (1/8th mile),
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