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#1
10-15-2002, 06:47 PM
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STARTING A NEW MOTOR FOR BRACKET RACING , WILL MORE THEN LIKLY BE A 40OVER 400 RACE ONLY LOOKING FOR 7.5 IN THE 1/8 MILE HAVE A SET OF 96 D PORT HEADS OFF OF A 71 MODEL 400 I BELIEVE THESE ARE 8.0 TO 1 COMP HEADS ARE THEY WORTH THE TROUBLE? WOULD LIKE TO SEE ABOUT 11 TO 1 COMP
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#2
10-15-2002, 06:47 PM
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STARTING A NEW MOTOR FOR BRACKET RACING , WILL MORE THEN LIKLY BE A 40OVER 400 RACE ONLY LOOKING FOR 7.5 IN THE 1/8 MILE HAVE A SET OF 96 D PORT HEADS OFF OF A 71 MODEL 400 I BELIEVE THESE ARE 8.0 TO 1 COMP HEADS ARE THEY WORTH THE TROUBLE? WOULD LIKE TO SEE ABOUT 11 TO 1 COMP
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#3
10-15-2002, 06:53 PM
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For an 11:1 400 you have the wrong head. Even with a max mill of .060 and a .060 overbore you will be seeing about 9.5:1 at most. There are plenty of high-compression 400 iron heads out there, find a set made from '67-'70 with 72 to 80cc and your 400 will have 11:1 with no problem at all. Casting numbers 670, 16, 62, 48, 12 and 13 are the ones to look for. [img]/infopop/emoticons/icon_cool.gif[/img]
Let's go racing! www.outlawpontiacs.com/members/B-Man2.php www.outlawpontiacs.com/members/B-Man.php
__________________
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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#4
10-16-2002, 05:17 PM
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thanks b man , i am currently running #16 on my racerwhich is a 60over 400 , i have 670 on my 428 66 gto and have several other sets of heads , i was just curious about the 96 d ports, any one need a set of #96 d ports ? will trade, be good on a street motor
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