Anyone have the newest issue of MoPar Collectors Guide with the 305 build by Petty?
Cant find a copy locally and was wondering if anyone had a scan?

i can scan a PDF for you and send it to your e-mail, or check at the local news stand for a copy when they get the new issue in.
let me know.

Sadly my newstand does not carry the magazine. I appreciate a scan very much.

no problem. PM me with an e-mail you want it sent to, and i'll get it to you right away.

PM sent
Thanks!

Well I read the article and as it was much more about the history of the #22 car and its last race there was little on the 305 build.
Point of contention was that they decided to use w-2 heads however to the best of my knowledge the W2 was not yet invented and it was not what Keith Black used. In fact Hot Rod did a piece way back in the 70' on this very Keith Black Combination and the photographs clearly show standard 340 "O" heads. So not sure whats up with this and I would have expected MCG to catch the W2 issue.

The build info is lame. No usable info at all.
Doug

it does sort of show MCG is not as smart as they think they are.

W-2s came out in the mid-'70s. But people like Bob Mullin were doing some pretty radical things with OEM heads which helped in the W-2 design. KB did the engine, but did that include the heads, or shared info? The T/A heads were a preferred foundation.

Right. The car ran in 71 I recall and at that time there were no W2 heads so if Petty put W2's on a recreation of the KB engine it was a gross error unless I am missing something. The original Hot Rod article shows the 305 that was at KB's shop, that very one used in the #22 car. Pictured is shows no W2 heads and there is no mention of them or anything like that. So IMO the MCG article missed that big error as did Petty. Now they were used later on the Kit Cars and the 355's but not the 305.

It was the April 1971 Hot Rod if any one is interested.
This is the heads shown at KB's shop

MCG is unfortunately not the hallmark of technical accuracy.
I've always found their articles a bit too full of exclamation points and hyperventilation.
But I still subscribe because of the interesting stuff that turns up in most issues

1970 T/A and AAR heads had offset intake rocker (?) so maybe they thought they were W2 heads?

Extensive Research done in the 1980's by a number of people documenting trans am and winged car history shows the the 305 race engines used "WESTLAKE" heads.


If any one on moparts has a set of these along with the correct headers I am sure the folks screwing together this car would love to have them.
Very very rare parts.

It is an Assumption of "why" they used W2 heads - so instead of assuming call the Pettys and quiz them and report back because the 300,000 people on here are waiting



Btw there was also a 355 cubic inch "mini" hemi used back then as well... Any of you critics have one lying around for my next hot rod??

Regarding technical accuracy: As for what was written in the article the information printed is what was provided by the people involved with the car. When writing articles about peoples cars the information provided by these people is typically printed without any forensic analysis. If you don't like the magazine you all should start your own.

(Edited) This is a ....."factual"..... discussion! If there was "extensive research" done, some of it should be available for you to post online to back up what you say about the 305 and other stuff.!

Westlake heads were used for Chrysler's Indy effort and by the Rod Shop in one of their Gas class Colts. Not legal for Nascar or Trans Am racing.

Nascar 305 w/production type heads.

Much more info is available online on the 305 applications.

I don't mind learning something new or getting errors corrected, IF the information is accurate. Not trying to get political, but here is too much of history being erased or changed as it is. Please confirm your info.

Yes Westlake heads on Indy motor effort.

There were one off “cheater” “developmental” heads made for the T/A program. Look at the Hot Rod picture posted. Big exhaust ports. The intakes look square-ish. Not sure if they raced with these heads as they don’t match the FIA port spec diagrams/measurements. These may have been a early developmental head. Early Gurney drawings show the large port. Later Gurney drawings show a production port.

I think there was a member here in Wisconsin selling a set of these T/A program heads... with a casting number like no other head.

Ed Skanes restored, owned, vintage raced a Gurney AAR and (2) Posey T/A’s. We writes here about these large port cheater T/A heads with factory casting numbers on them: https://www.transamcuda.com/cgi-bin/yabb2/YaBB.pl?num=1148593813/45


These square port heads do seem to have been used by the 71 Daytona.

Could also been used by the1971 Questor Grand Prix Formula 5000 car driven by Swede Savage.

These are headers flanges from a sellers that sold lots of Gurney leftovers and claimed them to be from Gurney’s shop.

The top ones match the later Gurney drawings. The bottom ones match early Gurney drawings and a few one-off T/A developmental/race T/A program heads.

Pic of a Weslake Plymouth Indy engine.

Kevin

Gurney also had a relationship with Weslake on a Ford head, which may have come from Ford's Indy program, or pre-dated it.
It wouldn't surprise me in the least if there were trick heads made for the T/A program: Keith Black & Dan Gurney were both hot rodders and very clever.
But at some point, SCCA would have a problem with it.