CHEV 3800 GT

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IndianaJones
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Re: CHEV 3800 GT

Post by IndianaJones » Fri 01 Jan 2016, 19:06

993 Kadett wrote:The project hung on a thread with the availability of the 302 engines. At one stage it was even considered that 350 LT1 engines would be rebuilt in the Aloes engine plant using 302 pistons and cranks purchased from GM parts and accessories division in the USA. That turned out not to be necessary..... as our friend UNCLE BOB again came to the rescue. Scores of transatlantic phone calls resulted in favours being called in and the Tonawanda engine plant produced a differential parts list for both the then current 350 LT1 and the '69 spec 302. The unique 302 parts were sourced from the US GM P&A dept, shipped to Tonawanda and a special run of 302's happened in late 1972 specially for SA!
Could this have resulted in some on the CanAm blocks not having the "DZ" prefix?

I just reread this thread, and still, what a great piece of history.
What happened to Paul/993 Kadett?

I can’t help comparing 993 Kadett's account of the 3800 GT to what the General were doing in Australia at the time, seems Holden didn’t share the hang ups of the rest of the GM camp. Both GM SA and Holden in Australia, sold the HB Vauxhall Viva in the late 60’s.

Then GM SA moved onto the HC Firenza 2.5 in 1971, and the very limited CanAm in 1973, but Holden had already started producing a new model called the Torana in 1969, of similar size to the HC Firenza I believe, except the performance models sported a straight 6 of 3L, later of 3.3L, and in 1974 with the slightly larger new model Torana, a 308ci Holden V8, all sold in much greater numbers than the CanAm. A sort of power to the people approach.

Initially I had thought why didn’t GMSA ever build a 6 cylinder Firenza 3800/4100, or 6 cylinder Ranger 3800/4100?
And later round about 1973, when Ranger production stopped and before the 2500/3800/4100 arrived, was the Torana ever considered as an alternative replacement for the medium size category?

But against the company background that was described, I understand it now.

Also a pity someone didn’t see the opportunity to run the Chevrolet Dealer Team as a private or semi-official entity, similar to Dealer Team Vauxhall in the UK, and the Holden Dealer Team in Australia. Or wouldn’t GMSA even have given it, some support? HDT eventually produced special Holden models, with a similar situation in SA, we might even have seen more homologation specials.

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Can-Am ZN
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Re: CHEV 3800 GT

Post by Can-Am ZN » Fri 01 Jan 2016, 21:14

IndianaJones wrote: Could this have resulted in some on the CanAm blocks not having the "DZ" prefix?...
This may answer your question, Indy.

The Can-Am specific parts list that I have only lists the DZ block, part no 3970567.

The page shown below, from a 1970 GM Parts Catalogue shows the number on my parts list to belong solely to the Camaro DZ 302.
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1974 Chev Can-Am 302
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ZA Perana
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Re: CHEV 3800 GT

Post by ZA Perana » Sat 02 Jan 2016, 16:50

Can-Am ZN wrote:
IndianaJones wrote: Could this have resulted in some on the CanAm blocks not having the "DZ" prefix?...
This may answer your question, Indy.

The Can-Am specific parts list that I have only lists the DZ block, part no 3970567.

The page shown below, from a 1970 GM Parts Catalogue shows the number on my parts list to belong solely to the Camaro DZ 302.
The interesting thing about that is the engines were brought in reputedly in component form based on the fact that these were the last few blocks, a concept I find hard to understand when clearly there would have been spares in stock at various GM dealers in the states.

If the casting number on the Cam Am blocks doesn't agree to the catalogue chances are those particular ones were custom cast with SA in mind.
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Can-Am ZN
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Re: CHEV 3800 GT

Post by Can-Am ZN » Sat 02 Jan 2016, 18:14

ZA Perana wrote: The interesting thing about that is the engines were brought in reputedly in component form based on the fact that these were the last few blocks, a concept I find hard to understand when clearly there would have been spares in stock at various GM dealers in the states.

If the casting number on the Cam Am blocks doesn't agree to the catalogue chances are those particular ones were custom cast with SA in mind.
I'm not sure that I understand the gist of your post, Jacques.

What I am saying is the the Can-Am specific parts list from GMSA lists the DZ block as that used with all Can-Ams assembled in SA.
Gavin

1974 Chev Can-Am 302
1991 BMW 325iS Evolution (SOLD)


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IndianaJones
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Re: CHEV 3800 GT

Post by IndianaJones » Sat 02 Jan 2016, 18:38

My question rather came about because I don’t quite understand what 993 Kadett meant with:
993 Kadett wrote:the Tonawanda engine plant produced a differential parts list for both the then current 350 LT1 and the '69 spec 302. The unique 302 parts were sourced from the US GM P&A dept, shipped to Tonawanda and a special run of 302's happened in late 1972 specially for SA!
If there were a shortage of complete 302 engines, and the current(1972) engines were 350LT1's, which would have a different casting number than DZ302's, could this special batch of engines build/casted in late 1972, for the CanAm, have been build with 350LT1 block casting numbers?

Is "the differential parts" list then one you posted Gavin?

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