I have a '73 sbc 350 w/flat tops not sure if it's been bored, I've bought a melling mtc-1 to go in it and I'm going to slap a 300-36 Holley Street Dominator intake that has been polished but not ported on top of it, I only have a 600cfm vs Holley right now with stock E.manifolds. First of all is that cam going to be to much lift for my pistons?? Second will I need to rejet that carb for more fuel?? And third,what kind of numbers should I be pushin after if it all plays out fine???
I will later be putting long tube full lengths on her with a 770cfm street avenger, it's in an '81 gmc long bed. Thank you for any replies.
350 is great for a performance engine build. The power is made from the package. Use parts that are made to work together and are proven.
Melling is the performer cam 420/442 lift , correct. I would use the performer intake. Not the RPm intake unless you have a lot of gear 4.10+ . Stay away from most single plane manifolds on the street.
NA hydraulic cammed, 9 ish to 1 engines I have built are good for .75-.85 power per inch. A sbc making 300hp is a fast engine with a good amount of power.
Lift should clear the pistons. Do not really worry about that till over .450 lift.
Not sure about rejeting , but a 600 holley at baseline should be pretty close. Better than a 770 in a heavy longbed.
Yes that is the cam I have, and that street dominator is the dual plane z28 style, I knew gears were a givin if I want it to have any jump at a stand still, so that will be a part of this build, it has the stock rear end which I can't find any gearsets for, i was thinking an early 90's reared should be a lot better seems how I can hop it up a bit easier, any suggestions???. What about a throttle spacer should I put it on or leave it off??, one of my wrenchin buddies says some offer brutal low end add, and I was told also they where for tuning not all that?? All I know is you can slap together a bunch of ****** ****,but if ain't tuned right it ain't gonna be worth a ****, I've built a lot of power jus gettin it all dialed in and tuned perfect
My estimate might be fairly accurate for your application.The engine I took out of my 1981 vette was 030 over 350 with a holley street dominator manifold,modified 650 holley DP with 850 baseplate,420 lift 198/208 @ 050 cam,small tube headers.The engine was built by professional builder Jack Muzzomo. Chasis dyno tuned on a dyno jet it put down 205 HP at 4500 rpm and torque peaked just under 280.
with 2.73 gears the car was not spectacular. I now use 3.50 gears and a stroker engine.
thats a good amount of HP per cube.I would like a 4.155 bore x 3.62 stroke for 392 cubes,big bore 350,heads would breathe better and rev like a 350.no need for reduced diametre cam
Sounds like a nice setup, Im jus tryin to get away from the stereotypical sbc, make it a little interesting next time around, somethin not many see or even hear of, know of any other somewhat simple to build unusual sbc's?
some 350s can be bored 060,so 4.06 bore x 3.875 stroke = small bore 401. American racing engines offers this combo.
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