will a 400 big block work in a 63 chrysler 300?
09-13-2011, 09:43 PM
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will a 400 big block work in a 63 chrysler 300?
i have a 400 big block out of a 73-76 dodge pickup and i was wondering if anyone knows if it will bolt in my 1963 chrysler 300 with no problems... the car originally had a 383 big block in it. thanks
09-14-2011, 06:56 PM
#4
Should bolt right up EXCEPT I'm not sure of the balance issues between the two engines. I'm pretty sure a 400 is "externally balanced" so must have it's own balancer, but I'm not sure if the torque converter has balance weights on it, or not
09-14-2011, 07:31 PM
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the Intake is not as wide on the 400 and the distributor shaft is shorter. If you get those with the 400 it should not be a problem. And yes the 400 is externally ballanced and I do believe the converter should be changed.
09-14-2011, 08:00 PM
#6
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You might need to change oil pans,most cars have a center hump while trucks use a front hump. TVLynn is right they are about the same,the 400 has a larger bore with the same 3.75 stroke.
john,have fun take some pics and post!
john,have fun take some pics and post!
09-14-2011, 11:07 PM
#7
383 & 400 use the same intake and distributor size.. 413/440 is different
09-15-2011, 05:04 AM
#8
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The 383 is internaly balanced and the 400 is externaly balanced so keep the harmonic balance and the tork converter that comes with the 400, although B&M makes a flex plate that will let you use a internaly balanced converter on an externaly balanced motor
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