billyride

Of the 1967 models, which was faster the L36 (427 CI 390 HP) or the L79 (327 CI, 350 HP)?

GTOguy

Since fastest usually refers to top end speed, probably the car with the tallest rear gear ratio.....3.08 or even lower, numerically.

Greg

It would all depend on gearing.

billyride

Same gearing (3.70) through the quarter mile

93RubyRedCoupe

I own both those cars. 390 and 350. Both with 370 rear. Both fly

billyride

But which flies faster?

Dad's '66 427

My bet is on the L36 being QUICKER in the 1/4 mile.....

GTOguy

I agree. Since all else is the same except engine, my money would be on the big block with more low end torque. But it also depends on the driver. If one of the Brass clan was driving the small block car and power shifting the 4 speed, all bets would be off!

billyride

But the 327 is weighs a little less.

SBR

Torque wins drag races, I would go with the L36 if all else is the same.

Vettrocious

Stock, factory engines, all other things being equal, if the L36 can hook up, it's at least half a second faster. On the street, on those factory tires, traction is a big "if", so I'd bet on the 327.

63 340HP

If you look at and believe engine specs the L79 has a higher hp powerband (5800 rpm peak hp for the L79 vs. 5200 peak hp for the L36). This aspect should result in a faster speed. Weight should also be a factor with acceleration favoring the L79.

Beyond the paper differences, the L36 valve train has a greater rpm limiting effect than the L79's lighter weight valve train with a lower rocker arm ratio. The L36 would be more prone to float the valves, with the hydraulic lifters pumping up, earlier than the same lifters in the L79.

In reality the winner would be the engine with the best tune, with both topping out around 135 mph if given enough straight road.

AZDoug

I would say tires and shifting have a whole lot to do with who wins. Equal sticky tires and auto trans, i would say the BB car. Assuming both are "as from factory".
Doug

93RubyRedCoupe

L36 is "faster" but the L79 is quicker off the line as it's lighter. Both are fantastic motors. L36 higher top end and faster, but the L79 won't get lost by any means.

Mr Fufu

I'm going to shame both with my 300hp 327 with Nitrous!

DansYellow66

All right - listen up everyone. We went through all of this last month. Not that it got totally resolved. This isn't going to be one of those KO Wheel type repeating subjects is it?

https://www.corvetteforum.com/forums...ersus-l79.html

Vettrocious

By the way, can you guys help me select the correct zinc content for the oil in my car?

Dad's '66 427

Shifting like this???

SoCalErv

You gotta love it, stogie blazing and not missing a beat.

The good ole days!!

Powershift

NOT one of his better days. Shifts were a bit labored. No body english.

Now Ronnie Sox on the other hand..................

Larry