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Author Topic:   pro stock motor help
Dirt Newbie

Total posts: 2
posted September 17, 2002 08:11 AM
Hi All,
Need some input on building a pro stock chevy 355 for a 1/2 mile dirt track.
the rules are max 355 cubic inch - flat top pistions only -cast iron intakes 4 barrel intakes allowed - 2 barrel carbs no hollys -
No aluminum heads - Roller tip rockers are permitted. No roller cams or roller lifters - HEI permited - Headers are permitted
this motor will be in a 3000 pd camaro.
most all the guys running up front are spending 5,000 or more in the motor. we don't have that too spend. any and all help to get us up front will be appreciated.
we now have a 516 lift 106 degree crane cam.
double hump heads with 202 valves.

Dirt Freak

Total posts: 310
posted September 17, 2002 12:12 PM
My advice would be look for good used parts they're out there but you have to find them and build for reliability we have the same situation at a track we used to run we had 1500 in the bottom end and about 600 in the top and won 2 championships but we only had 1 DNF and thats the key in my opinion

Dirt Newbie

Total posts: 2
posted September 17, 2002 08:43 PM
Not sure what your budget is , but I would look into a chevy crate engine, thay have a350 w/vortech heads that should fit your needs, around $2000, another option would be to call Midwest Motorsports,
1-800-262-5033 they do a very nice job of buildiing cheap reliable engines.


Dirt Full Roller

Total posts: 26
posted September 17, 2002 09:59 PM
Sell your camel backs on ebay to someone needing matching numbers. Then go and buy a set of VORTEC heads! there are manifolds made for this!! I'll look for the link. Those camel backs are really really outdated! there is far better stuff to be had. Besides that just get a good set of pistons and a steel crank. Have the rotating stuff balanced! Don't be hasty picking out a cam. Do some digging and see what will work best. Maybe buy 2 cams and try em both to see which the motor likes best?? Use a good rocker like harland sharp or scorpion (i know they sound goofy) and put oil restrictors into the lifter gallies to cut back on the supply to the top end. Get as much compression as you dare have with the fuel you can use. i'll post more when i think of it.

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