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| Pontiac - Street No question too basic here! |
| View Poll Results: Which engine with stock heads? | |||
| '69 400 with 62's |
   
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15 | 32.61% |
| '74 455 with 4x's |
  
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31 | 67.39% |
| Voters: 46. You may not vote on this poll | |||
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#1
11-12-2006, 12:29 AM
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455 hands down. You'll have to back the timing off on the 400 to stop detonation and it'll be a dog.
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#2
11-12-2006, 01:02 AM
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Prefer 400 over 455
My 400 Bird with Bullet 068 hydraulic cam out performs 455s hands down. See August issue #27 of High Performance Pontiac.
Now, having said that, if you are going to drive this on the street with todays available fuel, put the 455 in with the 068 cam, bring the 4x head down to 89/90 ccs and have fun. |
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#3
11-12-2006, 10:24 AM
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455 it,s to much fun.
__________________
1978 ,t/a 3660# 455 2010 / 1/8 7.86 1/4 12.40 @ 109,19 http://www.youtube.com/watch?v=6PaHbLnszS0 http://www.youtube.com/watch?v=XMxhM...eature=related 12.01@109 http://www.youtube.com/watch?v=MC-dganA2jQ 100 shot 11.78. A,ll new head cam combo 96 ported bye Mike Chell!! Comp cam yes the 284 XE. Firsthand outing of the street 7.69 1/8 12.15 109.47 hot and humid.not hooking. 1.73 60. |
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#4
11-12-2006, 01:30 PM
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Hard-Timess,
How much off the 4X's to get 89/90/? Thanks, Jim
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1973 Trans Am 4-Spd 455, #'s Matching 1973 LT/RS/Z28, 4-spd, 28K Milies, #'s Matching 1972 Camaro 4-Spd 1975 Camaro 2000 C5 Coupe |
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