st 165/185/205. recon. with flowsheet supplied. excellent exhaust porting to complement the intake to make big power with these.
Over the past 8 years we have developed a port shape providing excellent mid and low lift flow while keeping airspeed fast
heads are tested, multi angle valve job, refaced, new seals, assembled, ported and tappett adjusted ready to bolt on.
due to this model heads popularity note these heads are a 'do youre own' we offer super quick turn around time.
