Join Date: Jul 2000
Location: Beatrice, Nebraska
OK guys I need a hand I'm new to the Big Block game here. I have a set of heads that I bought from a friend at a good price. Part #3904390 GM4, and #3856206 GM5. they arent a matching set but I believe that they are identical. I'm unsure of what size valves I can put in them. the current exhaust are the 1.725 so I am assuming that the intake would be 2.065??? Is this as big as I can go? Could I have them cut larger and how big?
69 Camaro 327/Th400
Still got the protecto plate, build sheet, owners manual,inspection sheet from dealer, and a reciept for an extra key on date of purchase from dealer.
Visions of wheelstands in my head