302 .060 bore size?

[stephen4785]

whats the bore size of a 302 .060 over?

 

[mustangt93]

ive done the math twice and i get 306.59 cubes

 

[mustangt93]

sorry, 306.536496

 

[wishihadastang125]

i though .030 was 306 & .040 is 308?

 

[mustangt93]

thats what i thought, but when i did the math, its not what it came to be

 

[90mustangGT]

A 60 overbore on a 4" bore would come out to 4.060, making it a 310cid. 306 is with 30 overbore, and 308 is with 40 overbore.

 

[Michael Yount]

90Mustang - A- on the math test; if you round the decimals above .5 up, 60 over is a 311 cubic inches.

 

[FiveOCapri79]

Bore x Bore x Stroke x .7854 x 8(cyls.) There's the formula. I come up with 310.709ci. Guess you could call that a 311.

 

[Michael Yount]

If you call 310.71 a 310, then you'd have to call the standard bore (4.00") at 301.59 a 301. Since we're rounding up to 302, most would agree you'd have to round up to 311.

 

[351wRusty]

http://www.europartsinc.com/zonker/eng_disp.htm

this is just the first site that i found the other night when i was tryin to figure out what my 351 would be bored over.. i think i came up with a 312?

 

[Michael Yount]

.030 over 351 is 357; .060 over is 362 by my calcs

 

[351wRusty]

lol...ya i think im goin 30 over... but i was talkin about the 302 tho..that calculator gives me 312 on a 302 - 30 over..

 

[Michael Yount]

Rusty said "when i was tryin to figure out what my 351 would be bored over.. " -- that's why I calculated for 351, guess you typo'd. I just plugged into it for .030 over on a 302 (4.03 X 3) and it gave me 306. I input .060" over (4.06 X 3) and it gave me 311. You must've input something incorrectly - try it again.

 

[Mustang5L5]

It's a 311.

My buddy has a .60 over 302.

 

[cenok is family]

HA! i have a TRUE 5.0 (5.09) while all you peasants have just a measly 4.94. suckers...

it's a 311 but commonly called a 310. i have one.

 

[Michael Yount]

We're hereby starting a movement to call all the 310's -- 311's. We also need to start calling the 331's -- 332's. Yes, that one's off too. If we don't, then we have to start calling the stock motors 301's. And that'll really screw things up. Of course, when you tell the old timers that you've got a 332, they'll think it's an old FE block, not 5.0L-based, but what the heck.