Scat F-43 Series Forged Crankshaft - 3.500 in Stroke - Internal Balance - 2-Piece Seal - Small Block Chevy 4-350-3500-5700-21LW GEN-STX-G1-HK Patriot Exhaust H7007 16 gauge WM485MD Size:Small (55) With Steam HolesSince 1989 EAS21974

Scat F 43 Series Forged Crankshaft 3.500 in Stroke Internal Balance 2 Piece Seal Small Block Chevy 4 350 3500 5700 21LW GEN STX G1 HK Patriot Exhaust H7007 16 gauge WM485MD Size:Small (55) With Steam HolesSince 1989 EAS21974 Patriot Exhaust H7007 16 gauge 1 1 2" tube diameter makes set up and indexing quick and easyPlug and play with Holley EFI and compatible with other aftermarket EFI systems requiring a cam sync signalCNC billet housing with black anodized cap provide good looks and excellent durabilityChevrolet version is supplied with a equivalent Melonized distributor gear and adjustable slip collar for blocks with a non standard deck height2 3 4” of adjustment for different deck heightsO ring seals can be added to modified blocks to improve oil pressure controlSpecial oil tract improves lubrication to the distributor and cam gearShaft is guided by a sealed ball bearing and an extra long sintered bushing