[SPEED FREAK]

OK Guys who has the best price on a stroker 351w to a 427. I am looking for a complete motor all new with forged pistons that can handle NOS or a blower.
Thanks
Guy

 

[debo90gt]

Not sure if it's the best price out there, but Coast High Performance offers a couple different 427 strokers. These are full crate motors. First is a carbed version specifically for the Cobra kit ($8k, 503hp), 1 is an EFI motor specifically for the Cobra kit as well (comes with computer, harnesses, everything) and is $13k, and the last is an EFI motor for the Fox body mustang which is a little different (different intake manifold, at the very least) but pushes more power (515hp compared to 505) and is only $7500.

I've actually been talking to a builder there to get more information as well. The motors are spec'ed at 10.5:1 compression ratio, but he says that the Fox EFI 427s at 8.5:1 compression ratio (perfect for a blower!) have dyno'ed around 470hp. These numbers, of course, are flywheel. When you order your motor, you can specify anywhere from 8.2:1 up to 14.8:1 compression!

Hope this helps. I was originally planning on building a supercharged 331 stroker, but the thought of having a 427 is just too enticing! When the time comes, I am definitely ordering one of their motors.

Oh yeah, adding a blower/nitrous/turbo to the motor does not void their warranty either.

 

[Wayne Presley]

I wouldn't go any larger than a 408 with a blower as the side loading on the piston and the high ring placement of the 427 is not desireable. You should be in the 550-570 HP range with a blower and a 408. I have 430 HP with a naturally aspirated 342.

 

[Snakebit31]

If you can build/assembly an engine, PAW has a "427 Windsor special" with your choice of 10:1 or 9:1 pistons starting at $2995. There are numerous options available, get a catalog or check at www.pawengineparts.com

 

[2FAST4U]

A word of caution about the big strokers. Listen to what Wayne said. The big strokers require the pin to move into the oil groove, making the possibility of using oil a major concern. For a pure race engine, a little oil consumption is tolerable, but for a daily driver, not good.

That's why I changed my big block from 557 to 502 cubic inches. I still will make 679 flywheel horsepower with 600 pounds of torque. More than enough to propel a 2200 pound car.

-Keith

 

[debo90gt]

Man, just when you thought it was safe to make a change of plans!

I knew the 347 had problems with the rings and oil, but didn't know of the 427 sharing that problem.

But a 393 or 408 stroker is fine for boost? I'm trying to blueprint here, and I just want to be sure.

 

[2FAST4U]

A 393 or 408 with 8.5:1 compression is suitable for boost (nitrous or supercharging). Make sure the rest of the engine is setup for a power adder, otherwise you risk grenading the engine.

Anytime you use a power adder like a supercharger, tons of nitrous, or turbocharging, it's best to start with a 4-bolt main SVO block. They're designed for high horsepower environments.

You will need a forged steel crank, H-beam rods, full-floating piston pins, forged pistons, ARP studs or head bolts, and the correct type of head gasket for power adders. These usually have a copper wire to help seal the cylinder.

Just adding a TC, SC, or nitrous without due consideration to the rest of the engine components invites disaster. Money spent up front doing it correctly will be cheaper in the long run.

-Keith

[ February 20, 2002: Message edited by: 2FAST4U ]

 

[snakeboy]

Hawaii Racing is building my engine and in fact will be completed today. He will build the engine any way you want it and has almost all of the extra cool parts you need.

SnakeBoy