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#1
09-20-2024, 09:14 AM
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Static Compression and this Cam
Hey guys
I ran across a rebuilt 462 with a Lunati 0711 roller cam. The engine is built with 108cc milled 4x-H1 heads. Is this too much cam for an 8.5:1 motor? Thanks for your input.
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#2
09-20-2024, 10:21 AM
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Not a lot of cam for a 462.Tom
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#3
09-20-2024, 10:40 AM
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I don’t feel it’s too much cam as long as you have better 2.93 rear gears and the converter is not stock stall if the car is a automatic.
One condition though is that cams valve lift. The heads need to be set up for that amount of lift and factory length push rods will not work.
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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! |
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#4
09-20-2024, 11:54 AM
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What valve spring was used ? And the verified installed height ?
According to the link here the spring touted on the cam card is rated with ONLY 115 lbs on the seat at 1.700". https://www.lunatipower.com/dual-val...ate-qty-1.html .
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'70 TA / 505 cid / same engine but revised ( previous best 10.63 at 127.05 ) Old information here: http://www.hotrod.com/articles/0712p...tiac-trans-am/ Sponsor of the world's fastest Pontiac powered Ford Fairmont (engine) 5.14 at 140 mph (1/8 mile) , true 10.5 tire, stock type suspension https://www.youtube.com/watch?v=qDoJnIP3HgE |
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#5
09-20-2024, 12:02 PM
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Here is Butlers head build data
And the intended car is 3.55 geared TH350 with stock stall
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The More People I Meet, The More I Love My Dogs! |
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#6
09-20-2024, 12:24 PM
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That’s a small cam for a 462 at 8.5:1.
With 3.55 gears it should be okay with a stock converter, something like a 2500 stall would be nice though. Contrast it to this 455 with 8.6:1: https://forums.maxperformanceinc.com...5&postcount=19
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1964 Tempest Coupe LS3/4L70E/3.42 1964 Le Mans Convertible 421 HO/TH350/2.56 2002 WS6 Convertible LS1/4L60E/3.23 |
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#7
09-20-2024, 01:28 PM
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I have a set of 7k3s all done I could put on it, but would rather just install it
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#8
09-20-2024, 02:39 PM
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Quote:
And custom pushrods the receipt says
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#9
09-20-2024, 02:42 PM
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Quote:
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The More People I Meet, The More I Love My Dogs! |
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#10
09-20-2024, 02:45 PM
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If iam not mistaken that cam has less seat duation than a 068 cam and being sub 220 intake duration its going to run (power band) like a bone stock 455 with more torque everywhere, i don't think compression, gearing or converter will be an issue
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