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  #31 (permalink)  
Old 12-13-2013, 01:10 PM
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Originally Posted by Dragonoake View Post
Basically, you want a high velocity engine with lots of bottom end torque to get that weight moving.
Back in the 80's, "Super Chevy Magazine" had the "Econperformer" project going where a 4100 pound '70 Monte Carlo with a 350 (Crower Baja cam, SP2P intake, and a leaned out Q-Jet), a TH-400, and 3.31 gears was running low 14's@95 mph and getting 25 mpg
And that was with 80's technology; I suspect you could do better applying the same ideas with Vortec heads, a 700-R4, and TPI
vortec heads and tpi is an expensive combination , the vortec tpi base will run u around 600$'s just for the manifold base , by the time u pay for heads and intake etc i would just do an lsx and t56

for the ultimate budget i would do a stockish tpi engine out of a camaro or vette, they can be found cheap for comeplete good engines, hell i just sold a complete 40k mile ( original not rebuilt) l98 and 700r4 combo for 300 bucks

tpi is just that lots of bottom end and falls off fast in the upper midrange

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  #32 (permalink)  
Old 12-13-2013, 01:18 PM
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A drill, epoxy, a sander, and a grinder can make it work too, total cost is about 5 bucks in addition to vortec heads and a tpi intake.

Vortec heads are not needed though.

It is all out of steam at 5000 rpm though.
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Old 12-14-2013, 02:03 PM
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I replaced a stock 350 engine with a 383 stroker and got an honest 2-3 mpg improvement. The stronger engine does not have to work as hard nor does it downshift when going up hills on the interstate. The 350 always down shifted when going up the same hills at the same speed. My conclusion is that with more torque going up in size within reason will move your vehicle with less effort to the motor. I think you will be pleased with the 350 but I recommend using the later model vortec heads.
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