LS7 HEAD PORTING SERVICE 2L Aluminum Crankshaft: Callies 4340

2L Aluminum Crankshaft: Callies 4340 Compstar 8 Counterweight w/ LME Blueprinting Process Wet Sump Connecting Rods: Callies Compstar XD Rods (Rated to 1600HP) w/ARP  Bolts Pistons: LME Custom Diamond 2KHP PISTONS -16cc Wrist Pins: Trend Tool Steel Heavy Duty Pins Ring Pack: Total Seal Ring Pack Bearings: Clevite H-Series Main & Rods Main Studs: ARP

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CID LT1/ LT4 Castings are the first choice for serious power

Displacement: 390" Bore: 4

Factory plastics will not fit

LS7 HEAD PORTING SERVICE 2L Aluminum Crankshaft: Callies 4340By far the most established member in the LS engine family, the LS7, has proven time and time again to be the prime choice of late model hot rodders worldwide. Send us your GM factory cores and allow us to sculpt our proven port configuration and build you a set up that will dominate any street or track you choose to do battle on. ## By specifying your cam lift LME will assemble your cylinder heads with the proper spring installed height. This will