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#1
04-06-2005, 09:47 AM
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What is the cut off year to direct bolt a 70s 400 into a 69 Pontiac, with a 69 400 turbo? I also know the motor mount bolts changed, but when? Thanks.
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I can do all things through Christ, which strengthens me.. |
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#2
04-06-2005, 09:47 AM
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What is the cut off year to direct bolt a 70s 400 into a 69 Pontiac, with a 69 400 turbo? I also know the motor mount bolts changed, but when? Thanks.
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I can do all things through Christ, which strengthens me.. |
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#3
04-06-2005, 09:53 AM
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all 69-80 use the three bolt mount. Earlier used 2 bolt mount.
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#4
04-06-2005, 10:52 AM
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In 1970 the blocks went to five holes for the motor mounts. A-Bodies up to 72 use the same two holes that they always did. F-Bodies use the three new holes for motor mounts. Some of the late 70's blocks are not tapped in the two holes you need. So if the block has threads in the two holes you should be ok.
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http://ultimategto.com/rest05cars1.htm |
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#5
04-06-2005, 11:11 AM
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The first answer was simpler. Now, there is a 400 out of a 78 Bonney. Will this work? Do I need to count holes?
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I can do all things through Christ, which strengthens me.. |
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#6
04-06-2005, 11:30 AM
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Yes, you'll need to count.
I think about mid-late 1976 they dropped the 2 early style mount bolt bosses and used the 3 bosses with the newer mounts.
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John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
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#7
04-07-2005, 07:06 AM
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Teacher, Teacher! when you figure it out let me know, I plan to drop a 76 block in a 69 GTO in a couple of weeks and these emails casued me to get out a calculator.
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