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oldskool 12-06-2017 02:25 PM

1962 421SD Pistons
Any of you Pontiac guys know of anybody who might have at least one decent 1962 421SD factory piston ?

A Stock racer needs one to send to the piston maker to duplicate & send to NHRA for approval.

Adger Smith 12-07-2017 09:43 AM

Re: 1962 421SD Pistons
I have a set of original 455 SD pistons if that will help.

FED 387 12-07-2017 03:31 PM

Re: 1962 421SD Pistons
Mickey Thompson ORIGINALLY made the "custom" pistons for the SD engines might try contacting M/T see if they still have any prints and /or they would even make 1 piston OR if they had any paperwork where they could still make a piston---FED 387

Bob Pagano 12-07-2017 04:06 PM

Re: 1962 421SD Pistons
Try Lynn McCarty he is listed here on classracer.

oldskool 12-07-2017 07:22 PM

Re: 1962 421SD Pistons
Thanks for the replies !

I'll check out all leads.

I know there are bound to be a few guys who have gathered up lots of the old 421SD stuff. I just don't know any of 'em.

Don't need a whole set. Just need one decent piston, suitable as a pattern for making a copy of it.

But, I suppose an official, detailed description MIGHT be sufficient to get NHRA approval. Or, must they see an actual original piston, to compare it to the copy ? Anybody know, for sure ? :confused:

Bench Racer 12-07-2017 08:42 PM

Re: 1962 421SD Pistons
OMG!! 421 Super Duty Stocker, way too cool I can't wait to see this one.

oldskool 12-08-2017 10:39 AM

Re: 1962 421SD Pistons
2 Attachment(s)

Originally Posted by Bench Racer (Post 551327)
OMG!! 421 Super Duty Stocker, way too cool I can't wait to see this one.

Yeah, and the guys who are gonna do it know what they're doin, too ! :)

Back in the old days, before he moved on to quicker stuff, Don Gay did pretty good with a 421SD Stocker. I suspect these cars won quite a few races around the country, on thru the mid '60's. I don't have a clue how long it's been since anybody had a serious 421SD Stocker. ??? But it's been long enuff so that there are no NHRA approved pistons for that engine.

bob^3240 12-08-2017 11:18 AM

Re: 1962 421SD Pistons
I have a couple of guys looking

oldskool 12-08-2017 05:39 PM

Re: 1962 421SD Pistons

Originally Posted by bob^3240 (Post 551352)
I have a couple of guys looking

Thanks Bob ! :)

Bruce Fulper 12-08-2017 11:14 PM

Re: 1962 421SD Pistons
Love it. Well, while I'm being ignored let me chime in with some facts. Pontiac had their own pistons too, not just M/T's. I've had three NOS sets given to me by Jess Tyree when he was running my engine in his '63 Tempest. I still have one full set.In the factory boxes with factory part numbers. But that's ok. Pontiac knowledge? Who? Me? pfffft.

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