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4inbore Parts

4inbore Test Head

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4inbore Test Head

Pro-stock port. 331cfm@700 lift.(25"test)

Street/drag/turbo port.265cfm@650 lift (25"test)

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Test head showing each chamber and valve set on two different port designs

Exhaust Port

50mm x 40mm valves

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Pair of 4inbore pistons and cylinders

4" Cylinders

78mm to 90mm flanged cranks available

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Pair of Eagle Rods

Pair of Eagle Rods

Roller Cam packages

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New case prepped and ready for 4inbore application

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New pair of angle flow castings. These are bare and have
not been drilled to accomodate
your desired stud pattern.

 

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4inbore 15333 Culver Dr, Ste 340, Irvine CA 92604-336

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