What is done to a boats V8 to make it adequate for an auto?

February 8, 2010 by admin · 5 Comments
Filed under: Maintenance & Repairs 
auto
pappysgotitgoinon asked:

I own a 1970 Nova and blasted the engine some years back. I decided to get stupid with the car and change litterally everything about her. Auto to 4 speed, 350 to 454, new suspension, interior and and list continues. Well the 454 is from a 1989 jet boat and Im having starting problems and was wandering what was done to reverse the play of the motor for the car?

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Comments

5 Responses to “What is done to a boats V8 to make it adequate for an auto?”
  1. bartzan41 says:
    February 9, 2010 at 3:44 pm

    I think the cam is the only difference. The engine spins the opposite way for marine use. bartzan41

  2. Bill T says:
    February 12, 2010 at 6:20 pm

    It’s gonna depend mostly on the cam and where the engine is designed to make power. This happens a lot when people overbuild an engine for the street. So look at the cam first, it will need to be more “streetable” then look at the intake you have to have a certain flow to maximize the intake manifold and carb combination. In a boat it’s designed for high rpm and fairly constant (high) throttle. Although we’d all like to think we’re street warriors the truth is most of the time we’re under 3000-4000 rpm. Bill T

  3. michael_54550 says:
    February 14, 2010 at 11:15 am

    it is the cam and distributor, both need to changed and motor retimed… michael_54550

  4. oklatom says:
    February 14, 2010 at 1:13 pm

    It’s actually the other way around, what is done to a car engine to make it suitable for a marine environment.

    Rather than type it out, I will just give you this to read, which does a pretty good job explaining it. oklatom

  5. ssnova197304664 says:
    February 15, 2010 at 8:53 am

    The only diference i know of is that the exhaust manifolds are water cooled in a boat engine. Fuel and power and it should run. ssnova197304664

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