richfitz75

i want to get ppls idea's on what combos they think would make around 300-350 rwhp and the costs if they have ideas

brenx

Cost are depending on what you have?? For an engine like your after. roughly I think it'd cost between $5000-$8000 inc accessories.

Brenden

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XB Fairmont (street car) 11.07@123.02mph.

richfitz75

well really at the sec i want some stats.like cams,comp ratio,and engine details

brenx

Bottem end
Standard cast .030 over pistons
Quality rings and bearings
Rollmater timing set
214/224@50 lift.510/.536 112 and lifters to suit
10:1 compression

Heads
Closed chamber 302C heads
Ported with polished chambers
Single springs with dampeners
Standard rockers with shims

Up Top
Edelbrock Performer
4777 Holley 650Dp

Thats what your after.

Brenden

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XB Fairmont (street car) 11.07@123.02mph.

xdclevo

Sounds like a WH beast.
The only thing i may change for that sort of horsepower is forged pistons and a bit more cam and an exellerator manifold . 350 at the treads would be a big ask with that cam/manifold.

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10.70 @ 125.00 on the black fun top
408 Cube Cleveland.

4Vman

Agreed, 350 rwhp!?!?!?, thats allot of power, its going to cost close to 10K...
My solid camed 4V 351C made 340 rwhp and 450 fwhp on the engine dyno and it runs a single plane torker manifold, F246 solid cam, 750 DP, 4 into 1's, 6" rods etc etc, it owes me 9K.

You'll need a huge hyd cam (or smallish solid), single plane manifold, carb and plenty of port work if you're running 2V heads to get 350 rwhp.

john howard

That combo would be good for 350 flywheel horsepower.

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I never forget a face but in your case I'm willing to make an exception..

brenx

DOH! My stuff up. Didn't see the rwhp. I know a combo for that too

Bottem end
Hyper .030 over pistons
Knife edged crank
Shot peen rods
Arp bolts through-out
Quality rings and bearings
Rollmater timing set
238/248@50 lift.554/.577 solid cam 108 lobe sep (Crane F238)and lifters to suit
10.5:1 compression

Heads
Closed chamber 302C heads setup for 7/16th studs.
Ported with polished chambers.
Single springs with dampeners.
Crane roller rockers with shims.
single groove 2.100 inlet valves and 1.71 exhausts

Up Top
Weiand Xcellerator (no spacer)
4779 Holley 750Dp

Thats what your after. That combo did 355rwhp in a mates car.

Brenden

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XB Fairmont (street car) 11.07@123.02mph.

smally351

I know someone who lives round the corner that may be able to help you with that information....................

351.7 hp @ treads with 2v heads

john howard

350rwhp is big horsepower.A friend has a XY with 360rwhp & it runs 11.2 @ 118mph all day long.Has run a best of 10.8 @ 122mph with dropped pipes.

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I never forget a face but in your case I'm willing to make an exception..