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10-04-2002, 04:07 PM | #4 |
Green club
Join Date: May 2002
Location: Central CA
Posts: 1,059
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Big 69, this was copied and pasted from a racer on team chevelle, he got that power level out of the 396 no problem on a budget. You could substitute a Holley 3310 and an rpm manifold, he used to run 11's in a full bodied Chevelle.
402 w / 10.3 to 1 compression (calculated) Edelbrock Performer RPM Q-Jet Manifold Q-Jet carb w / 75 main jets and 45B rods, AX secondary rods on a G hanger 1 3/4" primary tube headers w / 3" collectors (go with Dynomax) Factory lifter valley heat shield Factory carb heat shield and 1/2" phenolic spacer Moroso 6-quart oil pan Factory windage tray TRW aluminum water pump Factory 7 Blade thermostatic clutch fan HEI with power coil and mod. Ultradyne hydraulic cam - 280/288, 223/ 231 @.050 with .525/.550 ground on a 110 LSA and installed on a 106 Intake centerline with matching springs Crane long slot steel rocker arms Factory balancer Felpro gaskets Turbo 400 with transgo shift kit full auto valve body Factory deep pan ATI 10" converter # 408360(73P) 12 bolt with 3.73 gears stock front and rear suspension with 1 3/8" sway bars and No-Hop bars Polygraphite bushings 3" head pipes with 3" crossover and 2 1/2" tailpipes with Flowmaster Big Block Mufflers Series 50 Mallory Comp 140 fuel pump and regulator Factory 4-core radiator This combo was driven anywhere and with the Q-Jet got 13 MPG on the highway. With this cam you shift @ 5800 and with this valve lift you don't need a roller rocker. If it's a square bore carb you want then go with the HP series from Holley and stay away from the Demon which I believe is junk. If you have the $ and want to step up with the 396, I'd go with a roller setup. The problem is though that nobody makes a roller small enough for this combo but you might want to give Comp a call and see if they'll custom grind you one. Tell them you want a cam that's 232 / 238 @ .050 with .633 / .640 lift ground on a 108 LSA. This cam doesn't exist but they can grind it and it has my intake lobe as an exhaust lobe for your combo. Don't let them talk you into anything else. This setup will be 4-5 tenths quicker in the 1/4 mile and make power in the same range. However I don't recommend this for a daily driver rather for a weekend max effort car that will see regular trips down the 1320. BTW, this setup will set you back $1000 for everything. Still the key to everything here is having those heads done by the right people. Ideally you are looking for a shop that builds stock and super stock motors and this work should cost about $700. If you are assembling the motor make sure all your clearances are dead on.
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71 short/fleet ECE 4/6 drop, LQ4/700r4/3.42 gears 70 SS396 Chevelle 427/200-4R/3.73posi 61 Lincoln Continental, black on black Son you are going to drive me to drinkin if you don't stop drivin that hot rod lincoln |
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