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#1
05-03-2021, 07:50 PM
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670 heads
Hello,
New to this forum and it looks to be a great one! I have been a Pontiac guy ever since I rode in my high school friends 77 bird. Owned a few since and my current car is a 1973 Lemans Sport I bought 14 years ago. Its time for a engine upgrade and I found a abandoned 468 at a my local mechanics. Nice build, forged bottom end, roller cam, and rebuilt 670 heads. Engine has dyno time only. I feel the 670 heads would serve a better purpose on a period correct car then on mine and I could make a lot more power with an aftermarket option. After searching for a while I cannot find a price in a set of 670 heads. Found a lot that need to be rebuilt, but no fresh ones. What are they worth? Thanks! |
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#2
05-04-2021, 12:25 PM
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Besides all that if that 468 was not built with dished Pistons those 670 heads have the compression up to 11 to 1 or higher!
If those 670 heads are fully rebuilt top to bottom with good heavy chromed stemed stainless valves , no sunken valve seats and good springs and with no porting work done to them then you could get 800 to 1K for them. If they started life as early 670 ram air castings with the special stamping for the ram air valve springs then they could be worth a bunch more to a restorer !
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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! Last edited by steve25; 05-04-2021 at 12:39 PM. |
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#3
05-04-2021, 12:34 PM
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Steve25,
The heads are completely rebuild and no port work has been done. The pistons are dished and has 9.2-1 compression. For $,1000 I may consider selling. Finding the right buyer will probably be more of a challenge than anything else. Thanks for the reply!
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1973 Lemans Sport 75 400 w/69 # 48 heads Cast intake w/ q-jet Ram air manifolds 200r4, 2,400 non lock up 3.73 gears 2 drop spindles 1.5 drop springs rear Summit sway bars Qa1 adjustable rear control arms 18 American Racing, nitto tires |
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