redtxlx

hey this may be a dumb question, ive been thinking about it for a while kinda half wondering. if my 302 is bored .060 over whats the displacement?

OneFine89Mustang

if your stock block is bord 60 over your block will blow up..that would be some thin cylinder walls

jssblues

you dont go .060 over on a 302

mjr46

.060 is not gonna blow it up ..I have seen a fair amount of .060 302's running normally.. a friend had one in his mild 65 fastback.......although not the most recommended and thinner cylinder walls reduces cooling system capability.......the standard is .030 and .040 would be fine to but if you ever have to punch a 302 to .060 I'd look for a new block..if however you are looking for power increases.. the bore of such won't give you a noticable power increase

woodsy

310

tinman

+1
310 on the money.
If you have something like an early ('6872) 302 block, they'll sonic test ok for +.060 overbore.
At least mine did...........

woodsy

I got an 1980 block here that is .060 over and still .150 thick in the cylinders, last just fine at those numbers. Don't automatically dismiss .060 over on a 302

redtxlx

pretty sure my car is bored .060 over, i bought it this way, and it hasnt blown up or anything, i was asking for displacement. not whether or not to do it. thanks.

mjr46

run it hard ftw!!!

mattdel

it wont blow up, it'll crack right down the middle