Our mild steel head flanges are precision cut and machined out of 1/2" thick plate to minimize warping during the welding process.

DETAILED SPECIFICATIONS:

Application(s)	Honda/Acura D-Series (except for D17 motors)
Flange Thickness	1/2" (0.500")
Material Type	Mild Steel

Note: Exhaust ports are optimized for Schedule 10 and Schedule 40 pipe size material.