how can i tell if engine is marine or car

[jim372]

i have a boat i picked up last year
1973 sea ray srv190
888 drive with 302 ford
as yet not fine s.n.
i think its a car engine
how can i teel for sure

 

[Scott Danforth]

Re: how can i tell if engine is marine or car

what makes a marine engine a marine engine is brass freeze plugs, marine head gaskets marine cam, along with the marine manifold, carb, ignition, alternator, and starter.

the block, heads, etc. are the same between trucks and boats

 

[jim372]

Re: how can i tell if engine is marine or car

would a mercruiser engine and a car engine have same firing order
if my engine came from a car and they but every thing marine on it
from old engine would fire order be as from car

 

[Bt Doctur]

Re: how can i tell if engine is marine or car

Chevy, yes. Ford maybe.they used the 351 order on the 302 motors

 

[mxcobra]

Re: how can i tell if engine is marine or car

same firing order/block and heads are the same iron...
if it has brass freeze plugs it for a boat if not pull motor install brass freeze plugs now you have a boat motor "basicly"

 

[joewithaboat]

Re: how can i tell if engine is marine or car

Some HO 302's and i believe all marine 302's and 351's used the 1-3-7-2-6-5-4-8 order which is generally referred to as the 351 Windsor order.

All others used 1-5-4-2-6-3-7-8

Can be a little confusing.

Most aftermarket cams i have used in the small block ford use the 351 order.

 

[jim372]

Re: how can i tell if engine is marine or car

yes it is confusing
have to try the firring orders and see what happens
one thing more
were should the rotor be pointed
does it matter

 

[jim372]

Re: how can i tell if engine is marine or car

i know it points to #1 on cap
bu should it also be pointed
other way
( like to rear corner of motor )

 

[joewithaboat]

Re: how can i tell if engine is marine or car

Have you removed the distributor?

 

[jim372]

Re: how can i tell if engine is marine or car

yes i had it out
thought timming was 180 out
not sure now

 

[joewithaboat]

Re: how can i tell if engine is marine or car

Are you working with a manual of ant sort?

Has it ever run sense you owned it? A little history of the boat may get you some help here. Your not giving anyone much to go on.