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  If Joe Sherman made 400hp with a 302...

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Author Topic:   If Joe Sherman made 400hp with a 302...
65_289
Gearhead

Posts: 761
From:
Registered: Jul 2001

posted 05-17-2002 02:14 AM     Click Here to See the Profile for 65_289   Click Here to Email 65_289     Edit/Delete Message   Reply w/Quote
...with ported stock heads and 9.54:1 compression, what kind of power would a 331 with AFR 185's and 10.5:1 make with a solid roller cam of similar or bigger specs? This assumes the rest of the 331 is basically the same as the 302, with appropriate changes in carb size, etc.

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1965 Coupe, Tremec 3550, Steeda Tri-Ax, Cable Clutch conversion, 9" N case, 4.11's, Detroit Soft Locker, 31 spline Moser axles, Daytona pinion support,, Biondo Line Lock, Ford XB3 longblock, x303 heads, B-Cam, 9:1 comp., Tri-y headers, cut-outs, Ford Racing high-torque mini-starter, Pertronix Ignitor & Flamethrower coil, 650 double pumper, Edelbrock RPM intake, K&N air, Holley electric fuel pump & AFPR, dual 2-chamber Flowmasters, Summit 3-way fronts, Rancho 5-way rears, 5-leaf springs, Chrome Export Brace, Griffen Radiator, Comp. Eng. subs.

[email protected] w/ a 1.837 60'

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n2oMike
Gearhead

Posts: 2831
From: Spencer, WV
Registered: Jan 2001

posted 05-17-2002 06:59 AM     Click Here to See the Profile for n2oMike   Click Here to Email n2oMike     Edit/Delete Message   Reply w/Quote
The actual compression was 10.5

They made a typo.

Good Luck!

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Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3
http://www.geocities.com/carbedstangs/cmml_mburch.html
http://www.fortunecity.com/silverstone/healey/367
http://www.mustangworks.com/cgi-bin/moi-display.cgi?220

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bluestreek
Gearhead

Posts: 1724
From: Athens,GA
Registered: Jul 2001

posted 05-17-2002 11:56 AM     Click Here to See the Profile for bluestreek   Click Here to Email bluestreek     Edit/Delete Message   Reply w/Quote
That's what I was thinking when I read the Sherman article. There was no way that you would have only 9.5:1 compression when using 54cc heads, flattops, and .005 deck height!! I did the same build-up about 8 yrs ago and only netted 375 HP. Sherman must have done some extensive work on the heads and intake to get 400 HP. Those pistons don't hold up very well either. After the engine got noisy fairly quick, I tore it down and found 4 pistons that were cracked and one had a piece of skirt broken off. 289/302 engines are hard enough on pistons without putting them in backwards.

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