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#21
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Tom I think they did a lot of things people don’t realize back then. If you heard the stories I’ve heard from the original drivers and guys who worked on the cars at stephens Pontiac you’d say no way to some of it.
Like the RAV trans am pro car having A Dana 60 rear in it with a GM part number. I normally don’t even post that stuff here because I know HO w the nay sayers will be. But more then one of the guys involved with that car say it. They also had an aluminum block that was referenced in a story back in 73 or 74. Can’t r,ember which year muscle car review I think it was, there’s a story that goes with that article and it’s the reason they stopped racing. I’m just happy I’m one of the few people to launch a real RAIV firebird at 6400 rpms at the track in full race trim. All that matchy matchy stuff seems less significant to me than that. It’s nice to be accurate, but I’m sure a lot of real items are being dismissed because people SAID they didn’t happen. Not trying to knock anyone but some stuff happened that wasn’t the norm for various reasons. I’m assuming it was a Dana 60 they just say DANA rear, To be more clear. But they also call it a RAM IV and RAM V guess that’s how they said it back then. They never ever say ram air IV
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Happiness is just a turbocharger away! 960 HP @ 11 psi, 9.70 at 146. Iron heads, iron stock 2 bolt block , stock crank, 9 years haven't even changed a spark plug! selling turbos and turbo related parts since 2005! Last edited by turbo69bird; 01-13-2021 at 09:14 PM. |
#22
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I owned one of the factory late alu blocks along with a early alu block which was part of a complete alu engine that was done back in about 1959-1960.I just sold a pair of early alu blocks that were cast for M/T for his hemi heads.Been lucky to have been around in the early 60s when M/T was involved with pontiac engineering.Back to the original topic.Tom
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#23
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FWIW, I sold a '70 455 SR block about 20 years ago for $1000.
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Just a blind squirrel looking for a nut. |
#24
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My uncle (the Dealer) and I replaced the RA-IV block on a Chicago Customer's car in 1970. The customer paid the dealership) would have paid about $350 for the SR Block. The Factory Rep came by and had the original numbers of the removed block stamped on the new block (as well as the SR) and the customer went down the road.
I thought that it was odd that the Engine had a Edelbrock intake and a Holley carb installed and the Factory Rep still covered the engine under warranty as it had about 1200 miles on the vehicle. Tom V.
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
#25
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Did not Reynolds Aluminum make all the blocks that can be tied to the factory engineering projects / usage and MT had his cast in near by CA somewhere ?
Even HO racing got there hands on a few leftovers that I recall them selling into the mid to late 70s I think. I seem to recall the name Lukens tied to the ones HO where selling? Maybe Ken can shed some light on this?
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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
#26
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Pretty sure Reynolds did not do them.Dimitrie might know as his farther worked in the foundry.I know for sure they were machined at Pontiac.2 of the late ones I have owned were pulled out of the trash on a weekend.There were 6 there.The one I built had some casting voids and core shift and porosity issues.Tom
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#27
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At one time I believe Loren B owned all 6 of those blocks, if I remember the story that he told me correctly.
Tom V.
__________________
"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
#28
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Yes,we talked about it when we met at that little motel years ago near Norwalk.I believe they went to Bob Underwood.Tom
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#29
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Off topic but here are a couple rare engineering pieces that were used to run the RA IV and RA V SCCA short deck blocks when running the 2-4 Xram intakes
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The Following User Says Thank You to tom s For This Useful Post: | ||
#30
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Interesting! Not surprised that the factory in term of flat out racing items decided to go back to the iron cased distributor's long after the production ones went over to Aluminum!
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
#31
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Steve,I really think they just use the Chevy corvette casting.Tom
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#32
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You may have that right, as they do look darn tall for a Pontiac Distributor!
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
#33
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They needed the height to clear the cross ram 2-4 intake which was legal in 1969 for SCCA racing.Tom
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#34
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303 shortdeck SCCA engine
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The Following User Says Thank You to tom s For This Useful Post: | ||
#35
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Quote:
__________________
Happiness is just a turbocharger away! 960 HP @ 11 psi, 9.70 at 146. Iron heads, iron stock 2 bolt block , stock crank, 9 years haven't even changed a spark plug! selling turbos and turbo related parts since 2005! |
The Following User Says Thank You to turbo69bird For This Useful Post: | ||
#36
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Quote:
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#37
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Thank You!
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#38
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Quote:
It does not surprise me a bit that Jim would be involved with some of the Aluminum Block investigations. I was not aware of the HO Racing connection with him but it makes sense. Tom V.
__________________
"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
#39
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I sold a 455 SR block nearly 20 years ago for $1K if that helps in pricing.
__________________
Just a blind squirrel looking for a nut. |
#40
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Seeing you guys are posting on block numbers, I'm thinking Rocky is always looking for information. My T/A has a 73 455 4 bolt SR block with casting numbers SR812568, H252, 48542 with last number ground off and looks like an 8 stamped. Noting special. FYI
Charles Last edited by chuckies76ta; 07-30-2021 at 08:48 AM. |
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