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Old 11-20-2009, 08:37 AM   #1
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1970 Fastback

Hey I have a 70 fastback that currently has the stock 302 in it. What will I have to change to swap in a 70 351c. Will all the accessories bolt up from the 302 to the cleveland, or will I have to find new brackets.
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Old 11-20-2009, 02:31 PM   #2
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you will need new brackets, and things such as distributor and exhaust manifolds if your new engine doesn't include those. I believe the motor mounts are the same, but while doing a swap, I would put fresh mounts on anyway.

Your transmission bellhousing will bolt right up, but if if using an automatic, I am fairly certain you need a different torque converter. If it is a manual transmission, I believe the flywheels are the same, but am not certain

Your front springs might be a little light as the 351 is about 60-70 pounds heavier fully dressed, or you could relocate the battery to the rear of the car to offset the weight gain up front.

Consider a monte carlo bar (a curved one will probably be necessary) and subframe connectors (weld in) to keep the body from getting twisted by the extra power.
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Old 11-20-2009, 05:03 PM   #3
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Quote:
Originally Posted by pawnman View Post
Hey I have a 70 fastback that currently has the stock 302 in it. What will I have to change to swap in a 70 351c. Will all the accessories bolt up from the 302 to the cleveland, or will I have to find new brackets.
you will have to modify or find new brackets.
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Old 11-21-2009, 01:11 AM   #4
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HEADERS...


most 302 equipped cars came with a 8 inch ford rearend housing...

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I have gone down the road that you are only now about to travel.
tires are the great equalizer
a degree wheel, EIGHT INCH dial caliper & adjustable pushrods should be just as normal as a 1/2" wrench in your toolbox
there aint no shortcuts to doing it RIGHT....
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