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Originality / Re: AMA passenger car specificatins - 1969 z28 "Locked in rod" piston pins
« on: October 14, 2016, 06:59:14 PM »
This is a great discussion, passionate topic. I respect your written and signed affidavit.
Since my last post I decided to call several machine shops from California to New York. I chose
machine shops that have been in business 25 to 35 years or more and machine shops that had
senior engine builders/owners.
I have listed six machine shops below that I called and asked if they have ever rebuilt 1969 Z28's 302 engines. And then asked if they could tell me how the piston pin was attached to the connecting rod from the "FACTORY". The key word here is from the "FACTORY".
All of the engine re-builders responded that the piston pin was of "PRESSED PIN" design.
From what they said, the L88 was the only engine that came with full floating piston pins from the
"FACTORY".
I find it hard to believe that all these machine shops would be conspiring in some way. They as well are enthusiast and love what they do and are equally as passionate.
I started this thread due to another member posting the AMA passenger car specifications. I have no axe to grind or want to discredit anyone in any way or manner. Now after speaking with at least six machine shops and engine re-builders from West coast to East coast. I feel even stronger now that the connecting rods from the "FACTORY" on the 1969 Z28 302 were of "PRESSED PIN" design.
I urge any member to call machine shops in their own area and ask the same questions I did and draw their own conclusions. I think the moderator of the CRG should do research as well and see where the facts point. And when enough information has been gathered, post it for all to read.
Below is the list of machine shops I contacted. Company name , telephone number, name of engine re-builder and their comments are listed.
------------------------------------------------------------------------------------------------------
McQuillen Inc.
8171 East Main Road
Le Roy, NY 14482
1(585) 768-2322
Rebuilt bunch of 1969 z28 302 engines all were pressed pin design.
L88 was only engine factory made with full floating piston pins
Mr. Carl McQuillen - Engine builder
carl@mcquilleninc.com
------------------------------------------------------------------------------------------------------
Performance Engine
1-310-679-3604
Tony - Engine builder
Rebuild hand full 1969 DZ - all were pressed pin design
---------------------------------------------------------------------------------------------------
Al Hubbard Machine Shop (Been around since 1960's or before)
21030 Meekland Ave
Hayward, CA 94541
1 (510) 537-1885
Wade - Engine builder
rebuilt 2 to 3 1969 DZ - all were pressed pin
Never seen a "FACTORY" 69 z28 with full floating pins for the connecting rods
and has never seen any small block from the factory with full floating piston pins.
Big Blocks, yes, but not small blocks.
Maybe specialty builds had full floating piston pins not service engines.
-------------------------------------------------------------------------------------------------------------
Champion Performance LLC
24290 Sherwood Ave
Center Line, MI 48015
1(586) 755-7400
Mr. Ed. MIchaels - Engine builder
Rebuilt half a dozen dz engines - all were pressed pin
-------------------------------------------------------------------------------------------------------------
Coast Motor supply
1-818-703-9049
Omar - Engine builder
Rebuilt half a dozen 1969 DZ - all were pressed pin design
-------------------------------------------------------------------------------------------------------------
Pro Formance Specialties
1115 East Main Street
Rochester, New York
1-585-288-1499
Spoke to engine builder with many years of experience
Rebuilt several 1969 z28 302 engines - all were pressed pin design.
-------------------------------------------------------------------------------------------------------------
Since my last post I decided to call several machine shops from California to New York. I chose
machine shops that have been in business 25 to 35 years or more and machine shops that had
senior engine builders/owners.
I have listed six machine shops below that I called and asked if they have ever rebuilt 1969 Z28's 302 engines. And then asked if they could tell me how the piston pin was attached to the connecting rod from the "FACTORY". The key word here is from the "FACTORY".
All of the engine re-builders responded that the piston pin was of "PRESSED PIN" design.
From what they said, the L88 was the only engine that came with full floating piston pins from the
"FACTORY".
I find it hard to believe that all these machine shops would be conspiring in some way. They as well are enthusiast and love what they do and are equally as passionate.
I started this thread due to another member posting the AMA passenger car specifications. I have no axe to grind or want to discredit anyone in any way or manner. Now after speaking with at least six machine shops and engine re-builders from West coast to East coast. I feel even stronger now that the connecting rods from the "FACTORY" on the 1969 Z28 302 were of "PRESSED PIN" design.
I urge any member to call machine shops in their own area and ask the same questions I did and draw their own conclusions. I think the moderator of the CRG should do research as well and see where the facts point. And when enough information has been gathered, post it for all to read.
Below is the list of machine shops I contacted. Company name , telephone number, name of engine re-builder and their comments are listed.
------------------------------------------------------------------------------------------------------
McQuillen Inc.
8171 East Main Road
Le Roy, NY 14482
1(585) 768-2322
Rebuilt bunch of 1969 z28 302 engines all were pressed pin design.
L88 was only engine factory made with full floating piston pins
Mr. Carl McQuillen - Engine builder
carl@mcquilleninc.com
------------------------------------------------------------------------------------------------------
Performance Engine
1-310-679-3604
Tony - Engine builder
Rebuild hand full 1969 DZ - all were pressed pin design
---------------------------------------------------------------------------------------------------
Al Hubbard Machine Shop (Been around since 1960's or before)
21030 Meekland Ave
Hayward, CA 94541
1 (510) 537-1885
Wade - Engine builder
rebuilt 2 to 3 1969 DZ - all were pressed pin
Never seen a "FACTORY" 69 z28 with full floating pins for the connecting rods
and has never seen any small block from the factory with full floating piston pins.
Big Blocks, yes, but not small blocks.
Maybe specialty builds had full floating piston pins not service engines.
-------------------------------------------------------------------------------------------------------------
Champion Performance LLC
24290 Sherwood Ave
Center Line, MI 48015
1(586) 755-7400
Mr. Ed. MIchaels - Engine builder
Rebuilt half a dozen dz engines - all were pressed pin
-------------------------------------------------------------------------------------------------------------
Coast Motor supply
1-818-703-9049
Omar - Engine builder
Rebuilt half a dozen 1969 DZ - all were pressed pin design
-------------------------------------------------------------------------------------------------------------
Pro Formance Specialties
1115 East Main Street
Rochester, New York
1-585-288-1499
Spoke to engine builder with many years of experience
Rebuilt several 1969 z28 302 engines - all were pressed pin design.
-------------------------------------------------------------------------------------------------------------