bxershrts

If you have done it let me know, whats sizes? Aftermarket valves or stock bigger valves? how do you think they performed after ? Pro's / con's . Dont tell me to buy trick flow heads or AFR's. Thats not what i asked. Thanks

rmodel65

do u have 1969-1970 351w heads? if not then they are just the same as a reg 302 head

bxershrts

Thanks. Yep I am aware of the DO0E heads having bigger vales in that year. And yes I have a few pairs. But has anyone had the heads cut to accept bigger valves?

zemog

i had oversized valves put in my 69's back in 82, but i have since had alot of chemicals in my brain and dont remember what size.

aode08

yeah take to machine shop



i have them on now, 1.94 intake and 1.6 exhaust.


but I paid for more work and since he was behind on the mortage , I got a GREAT deal. $500 bought em rebuilt with valves and stage 3 port job, chopped ..010