272 pistons

[cvicky]

it appears my new rings are a little to sloppy(0.006) in my stock pistons (3.6274) Summit doesn't have any - rock auto nothing , does any one have a 1-800 number for China lol

[paul2748]

Check with John Mummert - all things Y block

[mobileparts]

Might be able to supply you with N.O.S. *** U.S.A. made *** parts ---
Always best to simply call me --- 516 - 485 - 1935 --- New York.... Craig ....

[cvicky]

thx craig
i don't need NOS
if you come across something cheaper for 272 standard bore let me know
see you at spring Carlisle

[mobileparts]

Lawrence,
There is N O Chineseum, so your only options are N.O.S., of which you notice I have the best price in the Universe ---- and having them custom made / re - molded, which will run you triple to quadruple the price I quoted you......

Well --- you can always turn that block into a boat anchor......

[AllenV]

Sponsored Links (Register now to hide all advertisements)

EDIT 7APR2023-DOES NOT FIT THE 272, CHECK COMPRESSION HEIGHT

have a look at these at Summit Racing

Silv-O-Lite Cast Pistons


https://www.summitracing.com/parts/u...-std/make/ford

I did not look for oversized.

[AllenV]

EDIT 7APR2023-DOES NOT FIT THE 272, CHECK COMPRESSION HEIGHT

And here they are as 0.040" oversize

https://www.summitracing.com/parts/u...-040/make/ford

Summit Racing part number UEM-3186-040

[AllenV]

those 40-over pistons are 3.665 in. bore. I was thinking that if you need a bit larger maybe a standard 292 piston would fit. BUT NO. The 272 has a 1.857" compression height where the 292 is 1.760".

EDIT- WRONG, 1.857 height is for the 256 motor, see my next post below.

[mobileparts]

I already beat that price hands down, but cvicky / Lawrence is hoping to find some on somebody's
" Dollar table " ....... and, as we know, Gooooooooooood Luuuuuuuuuuuck on that .......

[KULTULZ]

Originally Posted by mobileparts

I already beat that price hands down, but cvicky / Lawrence is hoping to find some on somebody's" Dollar table " ....... and, as we know, Gooooooooooood Luuuuuuuuuuuck on that .......

You can lead them to water, but ... well, you know ...

[scicala]

Originally Posted by AllenV

those 40-over pistons are 3.665 in. bore. I was thinking that if you need a bit larger maybe a standard 292 piston would fit. BUT NO. The 272 has a 1.857" compression height where the 292 is 1.760".

The 272 and 292 have the same stroke and rods.
How can the compression height be that much different ?

Sal

[AllenV]

Originally Posted by scicala

The 272 and 292 have the same stroke and rods.
How can the compression height be that much different ?

Sal

Great question. I am glad you asked because I learned something. I had just looked at the bore and assumed the 3.62 bore pistons were for a 272. BUT, you are correct the 272/292/312 all share the same compression height.

That 3.62 bore and 1.86 compression height belong to a 256 motor.

The summit pistons I inked above DO NOT FIT A 272

FYI another oddball compression height is a 292 HD Truck motor

All this info is thanks to Mummert at

http://www.ford-y-block.com/dimensions.htm

[scicala]

Originally Posted by AllenV

Great question. I am glad you asked because I learned something. I had just looked at the bore and assumed the 3.62 bore pistons were for a 272. BUT, you are correct the 272/292/312 all share the same compression height.

That 3.62 bore and 1.86 compression height belong to a 256 motor.

The summit pistons I inked above DO NOT FIT A 272

FYI another oddball compression height is a 292 HD Truck motor

All this info is thanks to Mummert at

http://www.ford-y-block.com/dimensions.htm

Thanks for the explanation.

Sal