New 350 engine swap for: 1991 GMC Sierra SLE, 4x4, TH700R4, Heavy Duty Chassis Option

Aug 22, 2004 0 Replies

Alright guys need help in deciding what NEW engine to use.



After many phone calls to Pace Performance parts in Ohio, I originally wanted to put in their new 350 Vortec Multi Fuel Injection Premium Kit crate motor: cost $4,395.00



Some of the old wireing for the stock ignition from the original block wont fit/work with that engine.



I then decided that their 350 H.O. might work and or fit since this is just a long block with no intake manifold, but this comes with Vortec heads. I have no idea if my old intake manifold and throttle body will work with this engine: cost $2,219.00



They sell a direct replacement 350 long block: cost $1,554.00, clean up my existing manifold and throttle body and I'm good to go.



I want more horsepower and a stronger motor.



Any ideas guys.



Pindar



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