As we continue with this two part ZR-1 story, we now

examine some of the exotic LT-5 powered ZR-1's.

 

It all started with a factory test mule. The experiment

was to see how a ZR-1 would perform if given more power

and less weight. The end product resulted in a ZR-1 that

was so fast it was named the "Snake Skinnner", for it's

ability to out-perform the Viper and legendary Cobra.

 

It's stock appearance is most deceptive.

Deep in it's secluded desert hideout, this Corvette

underwent a metamophosis of grand proportions.

The fiberglass hood was replaced with a high tech

Kevlar hood with half the weight. The rear window

was plexiglass. No air-conditioning, no radio, and no

other power amenities were included in this "Mongoose"

of a Corvette. The engine is this "SS" very unique.

 

 

 

 

The LT-5 ZR-1 engine retained it's original displacement.

However, it's what's inside that counts. The cams were

advanced in timing a bit, the intake throttles were modified

so that all ports would flow equally and headers were

bolted up to the aluminum block to increase the airflow

out of this beautiful engine. A black crackle finish was

placed on the surface of the engine to reveal it's

secret identity. At first only 440 HP was stated, but

later, 475 NET Horsepower was advertised.

Let's take a look at some figures:

 

 

0 - 60 MPH .................. 3.6 sec.

0 - 100 MPH ................. 7.8 sec.

1/4 Mile : 11.8 sec. @ 123 MPH

 

0 - 100 MPH - 0 : 12.8 sec.

( This beats the '65 427 Cobra Record Holder of 14 sec. )

 

Cornering : 1.05 g's

 

All of this was done with a set of Goodyear Eagle GS-CS

tires, the "S" stands for "sticky", which were mounted

on a set of Dymag magnesium wheels.

 

This type of dynamic performance was a bit too much

for the corporate executives, so the Snake Skinner

never became a factory option.

 

Enter the "Tuners"

 

Both Doug Rippie and John Lingenfelter received the

data required to build their own Snake Skinners.

Not content with leaving well enough alone, provided

LT-5 engine packages that not only delivered 475 HP

with the original displacement, but also provided LT-5's

that were "stroked" to 368 cubic inches and pumped out

565 Horsepower !!

Dick Guldstrand took all of this one step further and

produced a complete package that included the modified

LT-5 engine, a handling package, and a body package

that could handle all of this extra power. The result was:

 

The Grand Sport 90

Classic lines clearly tell all that this is no ordinary

Corvette. A paint job just like the one on A. J. Foyt's

Grand Sport that he raced at Sebring in 1964.

18 inch wheels, special suspension, special brakes,

you name it, it's got it !!

 

What Curves !!

 

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