Mustang boss 302 vs mopar!

The "Boss" 302 suffered from the same thing many 5.0 Mustang guys tried in the begining. Too much cyl. head, and not enough bottom end.


Now, if we was to compare the New 6.1 liter Challenger to the "Boss 302" Mustang of today, i think the Mustang beats Mopar all the way around the horn.

The Boss 302 69 and 70 versions had a Cleveland heads (very similar to Nascar/Roush) heads used today. With a 4 bolt main ca Windsor block and screw in freeze plugs for block stability that thing was made to rev. The cranks was steel and the cam solid lifter driven. The cool thing about the boss motor was the enormous valve train for free flowing hi rpm performance. This motor was made to deliver 7200 rpm shifts and still have torque. At 10.5:1 ratio you got the nice snappy rpm blaster that beat all but Mark Donahue (Penske) in '69. The Chrysler cars were no match for the Boss and Camaro's, even the AMC's were faster. The 340 was de-stroked to in the c.i. department to meet the T/A requirement of 5 Liters. On the 1/4 mile the 340 was way faster.

The later 5.0's cylinder heads were the Achilles heal of the 5.0. Small 1.84 intake valves and tiny exhaust ports were no help in the performance department, but they did well with torque. Of course EFI specifically the Ford EEC IV was a great early performance capable system.

The Boss 302 lost the Trans Am Series even at Full tilt HP ran close to 490 HP at 9000 RPM in it's first year. The valve train design and canted valve arrangement was the difference in flowing big numbers of CFM. Ford won in 1968 with the Gurney Spec'd Tunnel Port 302 Ford and Chevrolet in 1969 then back to Ford in 1970, AMC in 1971 and 1972.

Chrysler engineers bought the Boss to see why and how to build the Challengers and Cuda's to be competitive. I think recently it was sold as a low mileage "as is" car.

Thanks