<< first full pressure truck 235s
were I think in 54. 53 was a weird year with several combinations of
hydraulic and solid lifter, full pressure, and babbit rod engines, >>
Note this: the heavy duty 235 put in TWO TON TRUCKS for 1953 was a low
presure 235. It was HD because it had chrome rings, and valve rotators. It
had 7.1:1 compression compared to 6.6 for 216 and 7.5 for powerglide equipped
hi presure 235 car engine. If splash oiling was such a disaster, as so many
of you young ones think, how come it was included in the HEAVY DUTY package?
the hot shot car engine has 204 ft lbs of gross torque while the truck 235
had 200. The last 216 had 176. these numbers come straight from Chevy
engineering, although I have trouble believing them. That extra compression
and Aluminum pistons in PG 235 sould give it more than 2 per cent more torque
than HD 235 with cast iron pistons.
anyway, my point is GM engineers thought a two ton truck would work fine with
low presure oiling even while high pressure oiling was right on it's parts
shelf.
I read the latest SKINNED KNUCKLES with an article comparing the Chevy 216 to
ford V8 and Plymouth flat 6. I'll try to get it reprinted in G&D for VCCA
(Vintage Chevy Club of Am.) Chevy won with lowest specific fuel consumption
and best volumetric efficiency. He looked thru repair ratings in Consumer
Reports and found Chevy had fewer repairs than the others. Chilton's flat
rate manual had faster repair times for many typical repairs for Chevy than
the others. Only Ford had higher horsepower. Conclusion: These are the
reasons Chevy outsold ford.
Bob ADler
.
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