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77 400
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zuse
New User
| Posts: 2
| Joined: 02/12
Posted: 02/07/12
05:35 PM
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got a 77 400 with 6x heads should I leave them on the engine of put a set of 71 #66 455 heads on Thanks
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Posted: 02/07/12
10:32 PM
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More compression would help. How many ccs are the#66 heads?
Drive it before your dead!
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zuse
New User
| Posts: 2
| Joined: 02/12
Posted: 02/08/12
04:40 AM
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101
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Posted: 02/08/12
07:42 AM
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Which 6X heads are they 6X-4 91CC,6X-8 101CC.
According to my info the 455 #66 heads are 114CC chambers.
Horsepower sells engines and torque wins races
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CarlosCJ3B
Enthusiast
| Posts: 297
| Joined: 10/11
Posted: 02/08/12
11:06 AM
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Keep the 6x 4 if you have them. Mill the heads a small amount, also hardend seats already, keep 1.66 exhaust valves.
Carlos
70 Lemans(GTO Clone),406,Solid Cam 218 single pattern, 105 LSA
Serious Hobbyist
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