360 head porting for big power (500HP ?)
Haven't cc'd them yet, going to mill them to 65 cc when finished. Probably take .030 - .040 off to get there.
The spring seats are completely milled down .060 for installed height.
Using blue viton seals, Comp retainers, 10* Crower locks, and Comp spring seat locators. Easy to see the retainer weight difference between beehive and std springs in the pic.
The valve seat machining is finished to within + or - .003 of target. I use a deck bridge during the seat cutting process. The installed heights are determined by each individual spring's installed pressure, and shimmed accordingly. I use spring seat locators for better stability and durability.
Haven't cc'd them yet, going to mill them to 65 cc when finished. Probably take .030 - .040 off to get there.
The spring seats are completely milled down .060 for installed height.
Using blue viton seals, Comp retainers, 10* Crower locks, and Comp spring seat locators. Easy to see the retainer weight difference between beehive and std springs in the pic.
The valve seat machining is finished to within + or - .003 of target. I use a deck bridge during the seat cutting process. The installed heights are determined by each individual spring's installed pressure, and shimmed accordingly. I use spring seat locators for better stability and durability.