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|In my opinion you can spend a lot more for a crankshaft but I don't think you can get them much more durable. There is always a "price point" on parts, for me at least. When I can get this quality for under $1,000 that is my choice. We do not need a billet crank for a 4.25" stroke Big Block Chevy on race gas. The ProMax cranks are a great piece to use in your race engine. Material 4340/EN24 heat treated and nitride; Mains gun drilled; Stress relieved and shot peened; Counterweights profiled; Micro polished.|
Rotating assembly; crankshaft, rods and pistons: Stan and Scott Ray at Ohio Crankshaft have built three engines for us and I trusted their recommendations when it came to the rotating assembly. The crankshaft is an Ohio Crank Pro-Max 4.25” stroke crank made from 4340/EN24 heat treated and nitride steel. The rods are Oliver steel billet 6.535” with Oliver’s own rod bolts. The pistons are JE Pistons with 1/16-1/16-3mm ring package and tool steel pins.
Cylinder Heads / Intake manifold: There are literally dozens of great cylinder head manufacturers and we went with a company a racing buddy recommended, Pro-Filer Performance. After several conversations with the company owner about what we were looking for as far as power, ease of getting spare parts, etc., we decided on a set of Pro-Filer Sniper-X 375s (#174) and a Sniper Jr. intake manifold for the 9.800” deck. We ordered them fully assembled and ready to bolt on. The engine shop said all they had to do was blow off the dust from the packaging and bolt them on.