1970 Monte Carlo with small block 400
110

Asked by Pippino15 Jun 13, 2021 at 11:45 PM about the 1970 Chevrolet Monte Carlo

Question type: Car Customization

I purchased this off original owner a few weeks ago.  Shadow gray, black vinyl
top and that small block 400.  All stock.  The 400 has steam holes and it is a
pain in the butt, so I decided to go with a 350 4 bolt main and pump it up
nicely.  Any reason I should not?  Just checking.  Thanks,

2 Answers
155,245

james answered 2 years ago

In my opinion changing an original vehicle such as this will greatly reduce the value of it. The 70 to 72 Monte Carlo has been a desirable vehicle for many years, especially in original condition! About 20 years ago a guy from work had one, also a 1970 model, that he put up for sale for $1,000. It was a beat up rust bucket of a car. His phone was ringing of the hook and he sold it in 1 day for the thousand dollars!! Hope that helps! Jim

Mark helpful

F_O_R answered 2 years ago

Steam holes? If the block is porous you have no choice but to replace it. Like GA says a 383 would be a good choice.

Mark helpful

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