1-piece rear main seal
CNC-machined cast-Aluminum 4-bolt block
4.250" finished bore
4.300" max bore
Tested to 650 horsepower
Block was used in Anniversary 427
1-piece rear main seal
CNC-machined cast-Aluminum 4-bolt block
4.250" finished bore
4.300" max bore
Tested to 650 horsepower
Block was used in Anniversary 427