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how to determine a yenko 302?

11K views 12 replies 12 participants last post by  bigblockblvd  
#1 ·
Hey guys , newbie here tryin to figure out if the 302 chevy motor I have is a yenko 302 . I ran the block and head numbers and they all match up .But i dont know how to track the plant or factory where it was built or how to tell if it was originally put in a z28. any and all comments are welcome and appreciated. email @ D..*.... :pimp:
 
#2 ·
First, and I'm not even a Chevy guy, 302s only came in Z28s. If it's a 302 it's a Z28..pretty simple. Now the Yenko thing is another issue all together. Although I was familiar with them, Go Yenko Corvair, I don't have complete details. A Yenko site would probably help. I don't think that it was like Shelby's where certain models were shipped to Yenko. I think they were shipped as they were ordered, so it most likely would be in the cars shipping details. A Yenko site might have serial #'s of the cars, but I am guessing that would be the only place. If it is a 302 it should have 2.02 heads and 4 bolt mains too, solid lifter cam and aluminum intake with a Holley (780 I think). Now verifying that the engine was in a Yenko would require a serial # stamped in the block that matches that of one of the Yenko cars...good luck.
 
#6 ·
The 67-69 Yenko Camaros ONLY came with the L72 427 big block. They were available with Muncie 4 speeds, TH-400s and the rock crusher 4 speed. There were NO small block Yenko Camaros during those years.

In '67 and '68 Yenko installed the L72 but in '69 some were factory COPO installations.
 
#8 ·
Deuce said:
Actually, the DZ 302 was a 69 Camaro Z28 thing only. The 67 and 68's had a different code.

:)
I stand corrected. The DZ code stuck in my head, likely because I helped my dad restore his '69. Oh well. :thumbup:

Don't remember who it was, Yenko, Baldwin, or some other "dealer", that put the SBC 302 into the Rallye Novas after restriping them. Been a long time, and I'm more a 55-57 guy, so I'm probably wrong on this one.

Oops, now I think it was probably the LT-1 350 motors they used.
Wasn't that the Yenko Duece? :confused:
 
#9 ·
junior stocker said:
Don't remember who it was, Yenko, Baldwin, or some other "dealer", that put the SBC 302 into the Rallye Novas after restriping them. Been a long time, and I'm more a 55-57 guy, so I'm probably wrong on this one.
That never happened the 302 only came in Z/28's from Chevrolet. Yenko, Bladwin, and Nikki never offered a Z/28. To my knowledge the SBC was never offered in any of the mentioned cars, they were all big blocks for obvious reasons.

Vince
 
#10 ·
Ah come on guys,, Be reasonable, I'm sure if we go looking on Ebay we'll find a Yenko 302 and it'll have 20 bids on it by guys that can't count to 20 unless they take there shoes off. Those that don't do there homework are bound to get screwed. So since this post has came up, I'm sure the new buzz word on the streets will be "hey man, what ya got in that thing?" "oh its a yenko 302"
So now we'll have something to replace that dreaded "it's a 350 rocket!" labeled on every olds motor known to man kind.
 
#11 ·
Yenko 302?

Did a search on the net for "YENKO", and it looks like several cars,Camaro, Chevelle,Nova, Corvette, Vega, and Corvair, were all base cars for modified dealer prepped cars. Excluding the Corvair, Small and Big block motors were used, but NEVER the 302. The 350 LT1 was more suited for all around street/strip use than the 302 would/could be. NOW, don't any 302 types be offended, as it's not meant that way. There were also more dealers than I knew about doing this modifying to factory delivered cars.