L72, 427 engine
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Instructor
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From: Lakeside AZ
L72, 427 engine
I have my eye on a 1969 L72, 425HP, 427 engine. That i think would look great in my 66 Vette. But i have no idea what ones worth. It's rebuilt and ready to run with original block #3963512, rec port heads #3919840, original intake etc. Any idea on what one is worth? Tried e bay motors & Craigs list but couldn't find anything even close to a vintage big block. I know it's a Camaro COPO engine but i don't know any Camaro guys to ask. thanks.
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There was no L72 427/425 in 69. It was a 66 only motor. The 3963512 is a 70-71 454 LS5 motor and would be worth substantially less than a 66 425 horse.
Burning Brakes
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in 1969 around 99 Chevelles and a few hundred Camaros were built with this engine. If you're saying no Corvettes had it that's correct.
Last edited by BLee; Aug 30, 2010 at 09:07 AM.
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They are great motors and would be nice in his 66 unless he wants the numbers to work.
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From: Lakeside AZ
Well i just got back in town and will try to add some info. How did i determine it's a COPO engine? Well it has the "MN" suffix on the engine #pad and block, heads, intake etc numbers all match a L72. It's got a solid lifter cam, etc. As for wanting a 427, any 427 (Camaro. Chevelle or Vette) vs say a 502 or 540. Well It's going to be a street cruiser and just knowing that i have a real vintage 427 in my Vette is just way cool. But as of yet i don't know what i'm willing to pay for it.
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They did make 425hp Impalas, and Belairs, and Biscaynes, in 69. Norm Fryer used to campaign one in B/S, IIRC, After his 66 425hp Biscayne days. I used to see him at Atco Dragway In N.J..
That engine is worth a fortune to a COPO car owner, especially if the original car is still around. If there is no vin on it, It is worth even more, depending on the casting dates. I bet you could easily trade that engine for the big block of your choice.
The 512 block was also used in 69, as a 427, besides being a 454 casting.
What are they asking for the engine?
Rich
That engine is worth a fortune to a COPO car owner, especially if the original car is still around. If there is no vin on it, It is worth even more, depending on the casting dates. I bet you could easily trade that engine for the big block of your choice.
The 512 block was also used in 69, as a 427, besides being a 454 casting.
What are they asking for the engine?
Rich
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There were a few 512 block 427's produced in 1970 - I have one in my 69 F-body. The engine was a short block factory replacement (CE) with the original August 67 heads & tri-power put back on. Factory 435 hp from 68 Vette. Paid $300 for it complete in 1980. Bet I can get more for it now.
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I have a numbers matching 69 427 RAT
As the title says, numbers matching survivor barn find. Unrestored, running, driving with numbers matching M22, yes, M22 rockcrusher connected to 308 rear. Found it a month ago. Trailered it home. Hood is in my bedroom for now, since it took some work to get her running, but she was entombed in a garage 2 feet off the ground on blocks, suspension half lifted and supported on blocks, tires deflated to 20 psi. 50,123 miles. Tank sticker very legible. It is a 427 RAT. Havent made it through all the documents yet, but even have the crate the car shipped to the dealer in in 68. I believe this car was custom ordered this way 100%. Got it from 2nd owner, who bought it in 72 from original owner.
