I know im asking alot but what blower is best for a s460 stroked to 520?? what should the comp ratio be built at?? trickflow did this build minus the blower and a 12 to 1 cr and came up to 752 hp at around 6500 i believe id like to do about the same but with the blower and shoot for 1000 hp. this motor is going to end up in a 1967 cougar but if it works out well im gonna build one for my 1974 f250. any help would be great.

 

> I know im asking alot
>but what blower is best
>for a s460 stroked to
>520??

You'll need a "Roots" style like a B&M or Weiand. Size to get 1,000 HP will need to be an "8-71" or larger. You'll need to run alcohol since the boost will be pretty high to achieve 1,000 HP. Expect to spend in excess of $15,000 for your engine/blower setup.

what should the comp
>ratio be built at??

Don't exceed 7.5 to 1 on compression.


>trickflow did this build minus
>the blower and a
>12 to 1 cr and
>came up to 752 hp
>at around 6500 i believe
> id like to do
>about the same but with
>the blower and shoot
>for 1000 hp.
this
>motor is going to end
>up in a 1967 cougar

You'll never get the power to the ground unless you build a Prostock style chassis. Better have another $25,000-50,000 in the bank account.

>but if it works out
>well im gonna build one
>for my 1974 f250.
> any help would be
>great.


Deen Hylton
Ford F250 460 C-6, K&N, Headers, Dual Exh.,Comp. Cams,Shift Kit
Pioneer CD w/Bose Speakers.
Other Passion: Blown 77 Corvette (Sorry Guys/Gals)
How I can afford to Drive the above: 93 GEO Metro

 

thanks deen the engine price sounds ok but the chassis could be pushing it...i have to get this all past the wife....lol thank you

 

I built a 557 inch blown alcohol Ford for my friend's monster truck. His engine has 11:1 compression, Lazer Roller cam, mildly ported aluminum CJ heads, BDS 8:71 teflon tiped blower on a Blue Thunder intake with Enderle "Bird catcher" injector, BME 6.700 aluminum rods, Venolia Pistons, Dove-A block with Engine Systems 4 Bolt caps, bored to 4.440 or .080 over. The crank is a Crower/Ford Motorsport forging with 4.500 stroke and it's got the short snout on the front and I double keyed it too.

To run competitively in a monster truck you need around 1200 horsepower and he runs very competitively. He's been turning the engine around 7000 Rpm and it sure seems to have trememdous torque leaving the starting line at about 4000 rpm. It's really a very mild combination that's very easy to tune, we use 36 degrees timing and it makes around 10lbs of boost with the blower 10% overdriven. I've also got the block o ringed and hardblocked to the bottom of the water pump holes. We're using Clark dead soft copper head gaskets with no problems. ARP studs hold the heads down too.

I don't remember the exact cam figures, but I think it's about 276/284 at .050 with .690 lift on 112 lobe seps, in at 108 intake centerline.

The only problems we've had have been oiling system related because of the wild ride of a monster truck, I feel that a dry sump is in the near future! We generally run about 110lbs of oil pressure with 50wt Valvoline oil. Why 50 wt? The alky thins out the oil so much it's necessary. We have a heater on the pan to help get the temp up before he fires the engine.

Check out the pictures at bigdawg4x4.com In a few of them you can see the top of the injector hat from the rear of the truck! This thing really gets with it!

 

 

.
(How reliable of an engine is this I have a Dove A block methanol fueled 460 I want to stroke out for my mud truck)