LEROY POLL
Well-known member
HEY FMC
YOUR VALVE SIZE SHOULD BE:
INTAKE................1.645-1.655..OR1.65
EXHAUST.............1.385-1.396..OR1.39
YOU CAN GET A 1.70 INT. AND A 1.45 EXH. AND THEY WILL FIT WHEN YOU ADD THE HARDENED VALVE SEATS. SOME HAVE PUT IN THE LARGER 1.76/1.5 ALSO. MY MACH.SHOP SAYS THEIR BOOKS SAY 1.70/1.45 IS WHAT IS CALLED FOR. I HAD A I70 HEAD THAT THEY WERE WORKING WITH. YOUR 250 HEAD IS DIFFERANT, SO MAYBE YOUR COULD GET THE LARGER VALVE IN.
I HOPE THIS ANSWERS YOUR NEEDS.
LIVE IN GRACE
LEROY POLL
YOUR VALVE SIZE SHOULD BE:
INTAKE................1.645-1.655..OR1.65
EXHAUST.............1.385-1.396..OR1.39
YOU CAN GET A 1.70 INT. AND A 1.45 EXH. AND THEY WILL FIT WHEN YOU ADD THE HARDENED VALVE SEATS. SOME HAVE PUT IN THE LARGER 1.76/1.5 ALSO. MY MACH.SHOP SAYS THEIR BOOKS SAY 1.70/1.45 IS WHAT IS CALLED FOR. I HAD A I70 HEAD THAT THEY WERE WORKING WITH. YOUR 250 HEAD IS DIFFERANT, SO MAYBE YOUR COULD GET THE LARGER VALVE IN.
I HOPE THIS ANSWERS YOUR NEEDS.
LIVE IN GRACE
LEROY POLL
