350 chevy

[hispeedgas]

I have a 350 chev .The serial no. is 4100124988.Can any one tell me when it was built or how to find out.<br />What is the difference between a road chev engine and a marine use one besides the exhaust manifolds.

 

[Bondo]

Re: 350 chevy

I posted in This Thread on How to ID the Base Block..............<br /><br />As far as Difference between Automotive,+ Marine,...........<br />The Cam,....<br />Some Gaskets,......<br />The Core/Frost Plugs will be Brass, instead of Steel,......

 

[Don S]

Re: 350 chevy

That is a Volvo Serial number, it's a Volvo model 501A first used in 1989.<br />It's a Chevy 305, not a 350.

 

[codfather II]

Re: 350 chevy

Don S. Respectully asking, How the hell do you know so much??? Every time I read something you submit, I'm amazed!!!! God bless YOU and this website! Codfather in Connecticut!!!

 

[ahein]

Re: 350 chevy

Don S. is one of the pro's on this board. Thank God for all of them or it would just be the blind leading the stupid and blind around here.

 

[Phantom17]

Re: 350 chevy

Looks like you got the OK from the Connecticut mob Don, you can boat there anytime!

 

[hispeedgas]

Re: 350 chevy

Thanks DON S and others for your response to my question. On further investigation I found the serial no. on the engine instead of the licience papers. This number is 000021MGDMWA. .I suspect it has been recond . Does this number mean anything to you. THe guy that sold it said it is a 350 .Info at the rear of the block is GM 3970010 in the casting.In addition the pistons have stamped on them .040.Obviously 40 thou oversize.How far can this engine be taken out?

 

[lowshovel1]

Re: 350 chevy

the casting # is 1969-1980 350

 

[Olds Eddie]

Re: 350 chevy

I understand that a raw water cooled engine must have more clearance at cylinder walls and ring end gap to allow for expansion of pistons. A raw water cooled block never really gets hot.

 

[Olds Eddie]

Re: 350 chevy

I understand that a raw water cooled engine must have more clearance at cylinder walls and ring end gap to allow for expansion of pistons. A raw water cooled block never really gets hot.

 

[Scaaty]

Re: 350 chevy

My repower was a standand 350 that was set up for marine use with brass freeze plugs, marine distributer, marine fuel pump and carb, and marine starter...and a marine cam. No internal mods but the cam.......

 

[Olds Eddie]

Re: 350 chevy

To answer your question on overboring cylinders, I would have it sonic tested to make sure it has enough meat. 40 over is close to the limit unless it has no core shift. If it doesn't have much wear you could hone the cylinders and go back 40 over which would give you more cylinder wall clearence which isn't a bad thing on a raw water cooled engine.