I'm researching building the 455 out of my dad's Grandville and I'm looking for tips on improvements to be made while its out. Specifically cooling, oiling, etc. This motor is going into a land yacht so it's not a race motor. Looking for low RPM torque and smooth idle. I've been talking with Butler performance and the suggested on of their roller cams to use with the 6X-8 heads I picked up.
Are there any coolant or oiling passages that should be drilled out or restricted? Are the one piece rear main seals and oil pan gaskets worth it? This will be my first Pontiac motor build.
Are there any coolant or oiling passages that should be drilled out or restricted? Are the one piece rear main seals and oil pan gaskets worth it? This will be my first Pontiac motor build.
