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Old 10-09-2009, 06:11 PM
Haulin327's Avatar
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Horsepower on ford 351 windSOR?

Here's a quickie. How much power do you all figure out of a ford 359 windosr with open chamber heads, 1.94"/1.6", ported ports, 9.1:1 static compression and is to go into a 1968 Cougar.

Gear ratios are optional with a C4 automaitic transmission. The torque converter stall speed is to be set at 2200 rpm.

I am curious as to what a nicely cleaned up and properly ported set of open-chamber '78 351 windsor heads with proper camshaft and intake...

How much Power?


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Old 10-09-2009, 07:19 PM
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The '78 heads will strangle anything you do to a 351W as they have the 'small valves'(1.78/1.46 valves). You need '69-'74 D0OE or C90E with 1.84/1.54 valves to even begin to think about performance. Additionally, they need the EGR hump removed from the exhaust as well as port matching.

With a nice camshaft and a streetable dual plane intake, a 600 or 650 cfm carb, a good Duraspark or MSD ignition, 300Hp +/-.

Add some GT40 or other good aluminum heads, a .030 over bore to 356cid, more cam - 350/375Hp.

These are great engines, but lotsa big horsepower out of them doesn't come easy (or cheaply)

Been there .........
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Old 10-10-2009, 02:28 PM
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My Jasper class II 351W with cast iron World Product Windsor heads should produce 365HP and 398 ft lbs torque if tuned perfectly.

The Jasper 351W class II with stock heads produces 305hp and 397 ft lbs torque.

Last edited by 001mustang; 10-10-2009 at 02:41 PM.
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