I have a 1975 grand lemans. Just did an engine swap from a 4.1 250 to a 1974 6.6l 400 bb. Question: the 400 ran before we put it in. Now it won't even turnover. Power to everything, won't crank.

Asked by Clukey Aug 12, 2014 at 11:53 AM about the 1975 Pontiac Le Mans

Question type: General

4 Answers

Yes. We can turn the engine as much as we want. And the transmission is the mated TH400 from the donor car.

missing a circuit? where? we've tried tracing wires and they all seem in order.

Your Answer:

Le Mans

Looking for a Used Le Mans in your area?

CarGurus has 1 nationwide Le Mans listings and the tools to find you a great deal.

ZIP:

Own this car?

Share your experience with others.

1975 Pontiac Le Mans

Review another car

CarGurus Experts

  • #1
    Rucko
    Reputation
    530
  • #2
    taver91
    Reputation
    400
  • #3
    James Sparrow
    Reputation
    260
View All

Know more, shop wisely

Search

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.