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Thanks fellas never knew Hi Po Valley Pans existed



Order one for a 440 truck and you get the same thing.



Only if he has an RB engine. B engines need the narrower pan.


I used one of them on my TT440. The back pressure in the exhaust blew one of the plugs out of the pan. It found it's way into a turbo spinning 100,000+ rpm.


Those ports are still punched on the "blocked" valley pans but they aren't knocked out. I doubt it will pose a problem for those without turbos.

Better yet, go with Edelbrock heads. They don't have those ports.

We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind.
- Stu Harmon