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Old 10-14-2011, 08:17 PM
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Quote:
Originally Posted by xb-60 View Post
"............ I checked on the bhp and torque figures for both...
289 K 271bhp @ 6000 and 312lb/ft @ 3400
289 A 225bhp @ 4800 and 305lb/ft @ 3200
302 GT350 250bhp @ 4800 and 310lb/ft @ 2800
Agreed, bare figures don't show the shape of the power and torque curves, so you can't assume from these figures that the 289 A and the 302 GT350 with power peaks at 4800 would be real slugs at anything higher than 5000.
So what do these figures prove? ..........."
Glen

remember, the A code 289 didn't have screw-in studs for the rocker arms like the K code engines did, so it couldn't hold the heavier valve springs needed to rev (the studs would pull out of the heads at high rpm). By the time the 302 based GT-350 came on the scene (1968) emission regulations were in place and the engine was de-tuned.

there were bottom end differences between the A code & K code 289's as well that enabled the K code to be a fun little rev happy machine with decent reliability,

Z.
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