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#1469908 10/06/2022 5:15 PM
Joined: Mar 2013
Posts: 219
J
'Bolter
'Bolter
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Joined: Mar 2013
Posts: 219
anyone know where one can buy new cast aftermarket pistons for a inline 302 gmc.
Jay D.

jay d #1469967 10/06/2022 10:37 PM
Joined: Jan 2019
Posts: 24
G
'Bolter
'Bolter
G Offline
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What size are you looking for ? There are 2 different size pins.

Joined: Aug 2011
Posts: 226
P
'Bolter
'Bolter
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Joined: Aug 2011
Posts: 226
Call my cousin at Engine Tech Machine. They just did my 302 motor and have the source you need. Ron or Kirt.


225-B West Betteravia Rd.
Santa Maria, CA 93455
805-928-7973
enginetech-ca.com

Joined: Mar 2013
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J
'Bolter
'Bolter
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THANKS, I CALL MONDAY
Jay D.

Joined: Aug 2011
Posts: 226
P
'Bolter
'Bolter
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Posts: 226
THIS IS WHERE THEY BOUGHT MINE.

EGGE machine 562-945-3419
Egge Machinery
8403 Allport Ave
Santa Fe Springs, CA 90670

Joined: Feb 2004
Posts: 29,792
H
Kettle Custodian (pot stirrer)
Kettle Custodian (pot stirrer)
H Online: Content
Joined: Feb 2004
Posts: 29,792
Check out pistons for a Ford 370 V8 truck engine. Dualoy part # 1173D. The dimensions are close enough that a good machinist can make them fit. Custom made 302 pistons from Egge will make your checkbook need CPR.
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
Joined: Dec 2008
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P
'Bolter
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The 370 is the smallest FF (385 Ford V8, like the 429 and 460), some sites list it incorrectly as FE (like 390, 428). Bore 4.05", pin 1.039" (offset), piston compression distance 2.12". $358.92 for a set of 8!!. that's $59.65 each for 6 (and 2 left over). A shop that does a lot of 302 work could buy 3 sets (makes the machining much cheaper) and make 4 302 sets... [img]https://www.heavydutypros.com/images/products/detail/1173D_Pair.jpg[/img] Thanks, HRL!
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Ford 370 piston.jpg (25.7 KB, 74 downloads)

Last edited by panic; 10/16/2022 10:18 PM.
jay d #1471366 10/17/2022 12:13 AM
Joined: Feb 2004
Posts: 29,792
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Kettle Custodian (pot stirrer)
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I'm also working on a long stroke version (4 5/16") of the Chevy 261 that uses 265 V8 pistons. That engine will approach 300 cubic inches with a bit of an overbore.
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
Joined: Mar 2013
Posts: 219
J
'Bolter
'Bolter
J Offline
Joined: Mar 2013
Posts: 219
thanks for all the info. i couldn't find any, but didn't try the ford pistons, my machinist struck out also. i' think i'll just use the stock pistons they seam to fit the bore good and look hardly used. new rings show a end gap within tolerance. the engine may have been bored shortly before i got it. i bought 5 engines from a guy with some dump trucks, he had scraped the trucks and kept the engines. only problem is they were mostly apart in a big pile. it a 270 and going in a 31 chevy pickup. its just going to be a cruiser daily driver, nothing fancy. well 3- 2's RV cam, headers t-5 5spd.
Jay D.


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