Help On 427sbc Project
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Help On 427sbc Project Iv got a 400 gm block want 600 hp 550 tq This is what i have= 400gmblock 4 bolt splayed maincaps ordering the world rotating kit=427 . Have hookers all msd air gap intake frome edelbrock want to know what cam heads and all . Will have spray dont want to go solid roller and yes streetable. Thx for all the help u can give 
About the only way you will get 600hp is gonna be with a solid roller cam. Unless you mean 600/550 with the spray. If I were you I would get a set of AFR 227's fully CNC'd from AFR or some Dart Pro 1 230's.. And I'd junk that Air Gap for a Victor Jr or Super Victor.
Originally Posted by 1QuickT-A
About the only way you will get 600hp is gonna be with a solid roller cam. Unless you mean 600/550 with the spray. If I were you I would get a set of AFR 227's fully CNC'd from AFR or some Dart Pro 1 230's.. And I'd junk that Air Gap for a Victor Jr or Super Victor.
i would disagree completely. 600hp and pump gas is definately doable with the right amount of air in/ air out....head/cam setup, with a hyd. roller cam. 427ci is big, and that's only 1.4hp/ci. that should be easy enough so long as, like i said, you have the right head cam pkg. i will agree with the Victor Jr. that shouldn't be a restriction for that kind of power. i'm not saying it's easy, just talk to a pro shop and ask their recommendation.
later,
Dave
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From: Gainesville, Florida # of drag strips runs: ?!?!?
could be done without a solid roller, but either hydraulic roller or solid cam would have to be choice, plus heads are the key. Another in agreement for the victor jr, possibly even a super victor jr. Go with a 750 hp carb at least. I'd consider calling cam and/or comp cams deirectly for their recommendation on the cam selection, or as stated above you could always get the advice from a shop with experience with combos similar to what you'd like. Make sure you have the info on what gearing, trans, convertor or clutch, and weight of the car will be.
Derek
Derek
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From: Gainesville, Florida # of drag strips runs: ?!?!?
we've got a shop car putting out about 550 hp with a 750 hp, not just a standard 750 carb. Dominator could help, but might be a little overkill, IMHO.
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thanks guys but i would like to go with the motowns 220s crane 558/558 240/248 at .050 it dont say the lsa this is from summit oyeah a victorjr intake and a demon crn-119651 pt number for the cam ----plz tell me what u think and what it will produce
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From: Gainesville, Florida # of drag strips runs: ?!?!?
a 600 hp motor would need at least 3 inch exhaust, if not possibly 3-1/2". Hell I put 3 inch exhaust on a 400 hp motor in my nova and picked up a tenth over a similar mandrel bent system, but in 2-1/2" diameter. I agree, that cam is probably not enough rpm range to get you to 600 hp.
why not solid roller?if you haven't purchased heads allready the ones set up for a hefty sr isn't much higher.i can't remember how big of a hr you can get i'd go atleast upper 250s @.050 & .600+ i'd say for 600-650 hp=230 pro 1s or afr 227s,motown 220s may get you there. you need a healthy cam =.264/268 @.050 .660/.630 lift or similar SR .call comp or other cam manufacturers.
So, like I said.. in order to obtain 600+hp then you will "more than likely" want to go with a solid roller camshaft. And yes, call Comp Cams and get a custom grind cam that is setup solely for the setup you are running. Cam would probably be around 260-280 duration and .650-.670 lift. Just depends on the head you go with. And yes, Victor Jr or Super Vic is the only way to go just really depends on the heads & camshaft you end up with.. And you will need 3in exhaust for sure.. Bigger would be better but 3in will work ok. I would think that the Dart 230's or AFR 227's would be the way to go. I don't think the Motown 220's are enough head for an engine that size.