Is there auto block swap for 3.0 OMC

Dana Summers

Recruit
Joined
Nov 30, 2003
Messages
3
Is there an auto equivalent of the OMC 3.0 GM engine? Just need a block.<br /><br />Engine is Model 302AMFTC, Ser # T0969793, Block # CE7N02400.
 

rodbolt

Supreme Mariner
Joined
Sep 1, 2003
Messages
20,066
Re: Is there auto block swap for 3.0 OMC

hello<br /> sadly there is no automotive swap for the 3.0. there was one years ago for the 153 but that motor went out of production years ago. look about fo a used engine but be aware that odds are the manifold and riser is craked as well.<br /> time to dissasemble everything to see what is salvagable.<br /> good luck and keep posting
 

Capt Ken

Commander
Joined
Jul 30, 2002
Messages
2,270
Re: Is there auto block swap for 3.0 OMC

The same engine is used for industrial power. Seen tons of them powering standby gensets and forklifts. Now the problem is finding one of those.
 

seahorse5

Rear Admiral
Joined
Jan 24, 2002
Messages
4,698
Re: Is there auto block swap for 3.0 OMC

Those Mexican cast 3.0L blocks were also used in the small Post Office vehicles some years back.
 

rodbolt

Supreme Mariner
Joined
Sep 1, 2003
Messages
20,066
Re: Is there auto block swap for 3.0 OMC

hello<br /> we saw a lot of the 153cid engines as industrial and used in post office jeeps. in fact we used to get blocks and heads from a jeep graveyard in ft worth TX off 820 :) :) . but I have never seen the 3.0 in them. but the list of things I have not seen grows everyday. the 153 was a workhorse and smooth as silk. the 3.0 181cid. is a bit rougher. if you can find a complete 153/2.5 it will interchange as a unit. the block bores are different<br /> some had different shaped ports on the head as well<br /> good luclk and keep posting
 

Dana Summers

Recruit
Joined
Nov 30, 2003
Messages
3
Re: Is there auto block swap for 3.0 OMC

Thanks, BMDODGE.<br /><br />The first one is a 120HP MERCRUISER SERIAL # 2643147. I've asked seller for engine and block numbers. He thinks it's around 1969.<br /><br />Are you thinking this would be same as my 1987 OMC 3.0? Where could I confirm?
 

BMDODGE

Petty Officer 2nd Class
Joined
Sep 16, 2003
Messages
157
Re: Is there auto block swap for 3.0 OMC

not sue about the first one..<br />the second one should be just what your looking for... is your block junk ??? just wondering why you just want a block ?? just curious...<br />bruce
 

cobra 3.0

Lieutenant Commander
Joined
Jul 31, 2003
Messages
1,797
Re: Is there auto block swap for 3.0 OMC

...maybe a rebuilt engine is the better way to go? Like right here on Iboats.<br /><br />Alos, somebody must be reworking these engines. If you want a cheaper alternative, try finding it under engine rebuilders in the yellow pages or 411. You may be able to buy just a rebored block and new rings and any other minimum equipment.
 
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