487 Heads Specs

Best Wallpaper Ideas website. Search anything about Wallpaper Ideas in this website.

487 Heads Specs. The combustion chambers are 75ccs though so if you want high compression you would have to run a domed piston. Intake valve exhaust valve.

Chevy Open Chamber Cylinder Heads Brzezinski Racing Products
Chevy Open Chamber Cylinder Heads Brzezinski Racing Products from www.castheads.com

The TSM487 includes a fiberglass insulated insert which is protected by a thermowell with process connection G½. They have a fairly large combustion chamber I think they are 76cc. 74cc race gas roller cam 487 CID makes 695 HP 6400 rpms with single Dominator carb.

Exhaust port is standard Pontiac D-port.

When I did the research some sites said all 487x heads came from the factory with the bigger valves I have seen them both 194s and 202s. If they are the 202 they may be worth more to somebody else that is restoring a Z28 or vette because that is what they came on. A BARE set of Chevy Open Chamber heads 441 487 or 993 with CNC-UnderCover Porting which includes our CNC-UnderCover Machining modifications to the intake ports exhaust ports chamber modifications all the cover-up work installing and sizing new bronze valve guide liners machining the valve seats for your size valves and providing air flow numbers for your camshaft selection. They have a fairly large combustion chamber I think they are 76cc.