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GM LS To ensure proper sealing of valve covers
64-2250BLK
Holley went back to the drawing board and built the ultimate air valve for your LS engine
from 10 micron up to 100 micron allowing for pre-pump and post-pump filtration without impeding flow rates
We've Increased The Body Diameter To Make It Tougher - More Able To Handle The Added Torque Requirements Of Increased Capacity Oil Pumps Or Heavy Viscosity Racing Lubricants
LS2 Asymmetrical FSR Dish Top Forged Piston J312042 Diamond Pistons GM LS To ensure properLS2 Asymmetrical FSR Dish Top Forged Piston4. 030" bore, 4. 000" stroke, 6. 125" rod length, 27. 6cc dome volume J312042 12042 GM LS Dish Top Our brand new Asymmetrical FSR (Forged Side Relief) forging design allows for the use of the most popular stroke and rod combinations while eliminating reluctor wheel clearance problems. Asymmetrical forging design maintains a larger skirt on the heavily stressed major thrust side, while reducing friction with a
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