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cylinder heads
- Thread starter brian
- Start date
Jim E
Donation Time
World Products makes an aftermarket head for the 2.9 because they are so bad to crack, but that head will not fit. Have heard there was a small run of alloy heads made for the 2.8 but have never seen them and my guess is they are imposible to lay hands on.
What is your engine set up? you running the forged high compression pistons or the 2.9 crank? what cam grind and valve springs? is the block decked for zero? Seems odd the valves are bending.
What is your engine set up? you running the forged high compression pistons or the 2.9 crank? what cam grind and valve springs? is the block decked for zero? Seems odd the valves are bending.
Hi Brian,
I can't understand why you are bending valves either. How much have you milled off of the heads? Are you running pop up pistons? What is the lift on your cam? Have you decked the block? Are you running a 2.9 crank and rods? Did you clay the valves before you did the final assembly?
I have milled my heads before by .030; run a cam with .500 lift, and have never bent a valve, even when I have broken a cam gear and the valves hit the pistons hard enough to bend push rods. Please let us know exactly what you have done with your engine, so we might be able to help you.
Jose
I can't understand why you are bending valves either. How much have you milled off of the heads? Are you running pop up pistons? What is the lift on your cam? Have you decked the block? Are you running a 2.9 crank and rods? Did you clay the valves before you did the final assembly?
I have milled my heads before by .030; run a cam with .500 lift, and have never bent a valve, even when I have broken a cam gear and the valves hit the pistons hard enough to bend push rods. Please let us know exactly what you have done with your engine, so we might be able to help you.
Jose