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Author Topic:   best one?
Oldsmobile13
Dirt Full Roller

Total posts: 66
posted July 12, 2001 10:06 PM
in my class i can run any engine as long as it is a gm with a 2bl. Smallblock or Bigblock. What do you guys think is the ultimate engine for a 1/2 mile track with a lightweight car.

sdhnc29
Dirt Full Roller

Total posts: 74
posted July 12, 2001 11:12 PM
500ci Cad. Light engine , and tons of power !

KPLugnut
Dirt Full Roller

Total posts: 57
posted July 13, 2001 07:33 AM
If there's no cubic inch limit OR carb limit, then the previous answer would definitely be the way to go (500ci), but since you are bound to a 2bbl carb, any cubic inches over about a 406 or so (i.e., big blocks) will really only be carrying around a lot of extra front end weight.
My recommendation would be to either go with a 6" rod 383, a 5.7 rod 406, or a 6" rod 358.
The key here to a winning combination is going to be in your head work, cam choice, and how good your carb (and whole induction system, for that matter) breathes down those relatively long straights.
If there's anything further questions you have, anywhere in the HP dept, just hollar.

Hope that helps,
KPLugnut

Oldsmobile13
Dirt Full Roller

Total posts: 66
posted July 13, 2001 05:54 PM
What exactly makes a 358? Is it the 6 inch rods or a bigger bore?

KPLugnut
Dirt Full Roller

Total posts: 57
posted July 16, 2001 07:55 AM
Usually, a +.040" 350 is referred to as a "358", but there are other ways of making that displacement as well.
the 6" rods have nothing to do with displacement, btw, they only change the piston dwell time at or near TDC, thereby slightly changing the power characteristics of the motor.

Hope that helps.
KPLugnut

AJ GARBE70
Dirt Moderator

Total posts: 59
posted August 19, 2001 06:57 PM
a 350 cfm 2 barrel carb is better than a 500cfm crb just my 2 cents worth

bbracer17
Dirt Maniac

Total posts: 168
posted August 19, 2001 09:17 PM
I have run a couple 500 holleys and they were great carbs with good power. Not sure what was wrong with the one's that you have run.

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