New 4.3 L repower engine upgrades--PICS included

conway22

Seaman
Joined
Jul 29, 2008
Messages
59
Hello all,

Re powering my 4.3 with a jasper crate engine. I was inquiring on what else I should add to it while I have the go ahead to give myself a Merry Christmas.
I am going to replace the exhaust manifolds to the two piece (possibly aluminum) instead of the old one piece batwing junk. I was thinking of new intake manifold and upgrading from 2bbl to 4 bbl.

Please take a look at old engine pics and please recommend brands, places to get (websites), and anything else you can pick a part that needs replacing.

respect,
Conway
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boatignition09013.jpg
 

180shabah

Rear Admiral
Joined
Mar 26, 2005
Messages
4,995
Re: New 4.3 L repower engine upgrades--PICS included

A good intake manifold and 4bbl will really wake up your vortec motor.
 

ENSIGN

Lieutenant Junior Grade
Joined
Jun 21, 2009
Messages
1,179
Re: New 4.3 L repower engine upgrades--PICS included

Change the impeller!!!
 

Bronc Rider

Petty Officer 1st Class
Joined
Sep 1, 2009
Messages
255
Re: New 4.3 L repower engine upgrades--PICS included

I would check everything behind the engine for corrosion. If I repower I change the Y pipe also. Not necessary but its something less to worry about.
I agree with 180shabah, 4bbl intake and carb will make a nice power difference. I have used edelbrock carbs and intakes with good results. If its a saltwater boat you will need a cast iron intake.
 

conway22

Seaman
Joined
Jul 29, 2008
Messages
59
Re: New 4.3 L repower engine upgrades--PICS included

Any recommendations on where to get the 4 bbl intake and carb?
 

Bondo

Moderator
Staff member
Joined
Apr 17, 2002
Messages
71,083
Re: New 4.3 L repower engine upgrades--PICS included

Any recommendations on where to get the 4 bbl intake and carb?

Ayuh,.... Any of the online Hot Rod Shops have the Edlebrock carbs,+ aluminum manifolds...

Michigan Motors carries the cast iron manifolds for Saltwater use...
 

zbnutcase

Commander
Joined
Sep 19, 2009
Messages
2,055
Re: New 4.3 L repower engine upgrades--PICS included

And be sure to get the MARINE Edelbrock carb. 'nutcase
 
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