unnanimous said: (quoted from post at 19:33:45 01/31/08) what is best for a street motor that will run on pump gas? a chevy 327, 350 , or 400???? the 400 has more torque but lower rpms compared to the 327 which has extremely high rpms.
like someone said, depends on your set up. I personally have built 327's to pull like a monster, and a couple of 400's that turned 8500r's. I personally do not like the 350s, can't give you a real good reason, just old school I guess. I am planning my next project though, I am hopeing to find a worthy 400 block, I have the 327 crank already, and 6.30" rods, the rest is really where the "setup" comes in. Deciding your max RPM's, and power zone. then you can realisticly chose heads, cam, intake, and carb, to work together, instead of against each other. If you want a good low to mid RPM motor say max rpm od 6500r's use the 305 tuned port heads, install 1.60" exaust valves they already have 1.80" intake, she'll run real strong and give deacent MPG, had a 327 like this in an '89 short stepside pickup. she'd outrun a stock vortec 350 to 100mph and delivered 24 MPG with TBI. do your reaserch and plan it realisticly, not I want to drive it everyday to work and be the fastist thing out there. ( cant be done) that is just my two cents
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