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Bought a 2008 dodge 1500 with a manual tran with the 3.7 motor. Would like suggestions on performance upgrades for it. alot of post here are for the Hemi.
Thank You in advance, any help would be appreciated.
 

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Red Trucker
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Not much you can do unless you have money for mostly one off custom parts. Both the 3.7 & its big brother the 4.7 were largely ignored by both the factory and aftermarket for performance stuff. You could port & polish the heads, maybe see if bigger valves can be installed, but you need custom cams to take advantage of it. also need a better intake manifold and those don't exist. There used to be a supercharger kit for the 3.7 but was discontinued because it kept lifting piston ring lands. Any kind of forced induction would at minimum require better pistons and rods; these will all be custom unless you can find a forged rod at the correct length plus a forged piston in that bore size that would actually work. Forged crankshafts don't exist for this engine. You could change the gear ratio which would help that 210-215hp with giddy up and go but your fuel mileage would suffer.
 
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