GM Releases 2013 bogus HP ratings at PRI show

[Chad Rhodes]

Originally Posted by Andrew Hill

Well they would factor that down to 330 like the 70 because its the exact same motor. They just put it in a corvette a year earlier than a camaro.

actually i believe it has a holley instead of a q-jet

[Andrew Hill]

Originally Posted by Chad Rhodes

actually i believe it has a holley instead of a q-jet

So does the 70 LT-1

[Chad Rhodes]

Originally Posted by Andrew Hill

So does the 70 LT-1

so 71 was the change, my bad. it does show a 485/485 camshaft in the 69 though. Different carb numbers but the specs are the same for them.

[Andrew Hill]

Originally Posted by Chad Rhodes

so 71 was the change, my bad. it does show a 485/485 camshaft in the 69 though. Different carb numbers but the specs are the same for them.

Yep, the only difference in the 69 vs 70 is the 485/485 vs 458/485 cam. The 71 moves to a different head and a flat top piston and is rated at 315 in both the Camaro and Corvette.

[Greg Hill]

Originally Posted by Chad Rhodes

so 71 was the change, my bad. it does show a 485/485 camshaft in the 69 though. Different carb numbers but the specs are the same for them.

71 and 72 also have a Holley, just less compression and different heads.

[treessavoy]

Gentlemen,

Using my fading memory and wikipedia I find that the LT1 was only manufactured in 1970-72, no mention of production in 1969. The closest HP 350 I could find was the L79 350/350 anything with higher HP was a big block.

I've been wrong before, well not really, OK only three times and I'm finished paying alimony, if you could direct me to a site that gives the spec's for the 1969 LT1 I would appreciate it.

JimR

[Chad Rhodes]

Originally Posted by treessavoy

Gentlemen,

Using my fading memory and wikipedia I find that the LT1 was only manufactured in 1970-72, no mention of production in 1969. The closest HP 350 I could find was the L79 350/350 anything with higher HP was a big block.

I've been wrong before, well not really, OK only three times and I'm finished paying alimony, if you could direct me to a site that gives the spec's for the 1969 LT1 I would appreciate it.

JimR

Jim, in 69 it was corvette only. It's pretty widely known knowledge

[RJ Sledge]

Greg

I really wasn't trying to give you crap about you and your son's engine combos, I had a legit question and asked nicely if you could answer it

Once again you are wrong about most everything concerning my combo, so let me bring you up to speed. The 390 did not get the big camshaft that you mentioned, and still runs the same spec camshaft that came from Ford in 1967. Also I run the smaller 715 cfm Holley list number 3301 and not the 735 or the 780.

You are right about the 390's not being able to out run the 327's in 67. Thats what makes me wonder, why my dog 390 motor that can't run with the 327's in the day only gets 1 hp taken off the Factory Rating (320hp Factory to 319 NHRA Factor now) and you get 35hp taken off. Really doesn't make sense, so thanks for bringing that up.

Oh, my motor did not come out of a school bus, it was out of a Septic Tank Pump Truck.

The thing that troubles me most, other than the fact you don't know the difference between "come'r" and "sic'um" IMO, ........ is I never knew that you were so.......... sensitive.

Been doing any trick riding on you pit bike lately??

RJ

Merry Christmas

[Jeff Teuton]

Merry Christmas!! If this pictures come out, the left side is old cars, the right side is new cars, and the middle is obvious. Never mind, it was my trophy case decorated for Christmas. Maybe tomorrow.

[7423]

Originally Posted by R J Sledge

.

Oh, my motor did not come out of a school bus, it was out of a Septic Tank Pump Truck.

That is classic !!

One might wonder which end of the truck it came out of, but I won't ask.