Tag Archives: 454

Series 2 Pagoda – ISO Rivolta ISO Grifo CAN Am

In 1970 ISO Rivolta carried out a face lift of it’s ISO Grifo model, the most noticeable external difference between the Series II, seen in these photographs by Geoffrey Horton taken at last years Carmel by the Sea Concours on the Avenue, and the Series I being the pop up half cover over the headlights.

ISO Rivolta, Iso Grifo Can Am, Carmel Concours by the Sea

The face lift also saw the end of the 435 hp Super 7 Litri / 427 cui model which was replaced by the new CAN Am model powered by the 395 hp 7.4 litre / 454 cui Chevrolet big block.

ISO Rivolta, Iso Grifo Can Am, Carmel Concours by the Sea

Despite the increased aerodynamic efficiency the increased weight of the less powerful, yet larger, motor meant that the CAN Am’s top speed was ‘only’ 168 mph as against the 186 mph claimed for the Series 1 Super 7 Litri.

ISO Rivolta, Iso Grifo Can Am, Carmel Concours by the Sea

I believe today’s featured 1971 CAN Am is one of just 24 ISO Rivolta Iso Grifo CAN Am’s built between 1970 and 1972. Their beauty and connection with Bizzarini, designer of the fabled Ferrari 250 GTO, means that these cars are not going to leave a new owner with much by way of change from $400,000 dollars, indeed last year a partially restored example of a CAN Am was offered on e-bay for an eye watering buy it now price of $322,000 ! It is not known at the time of writing if the item sold.

My thanks to Geoffrey Horton for sharing today’s photographs.

Thanks for joining me on this “Series 2 Pagoda” edition of “Gettin’ a li’l psycho on tyres” I hope you will join me again tomorrow when I’ll be looking at a 1953 Standard Pickup. Don’t forget to come back now !

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Low Lead 454 – Chevrolet Stingray Corvette (C3)

Longest running of the Chevrolet Corvette incarnations was the third generation C3 built between 1968 and 1982.

Chevrolet Stingray Corvette, Goodwood Revival

The C3 Corvette took it’s styling cues from the 1965 Mako Shark II Concept Car.

Chevrolet Stingray Corvette, Goodwood Revival

A new feature of the C3 Corvette’s was the T Top removable roof panels, an idea first patented Gordon Buehrig in 1951 for his, unsuccessful, TASCO Sports Car.

Chevrolet Stingray Corvette, Goodwood Revival

The T-Top proved so successful that production of convertible Stingray Corvettes ceased in 1975 and was not revised again until 1986.

Chevrolet Stingray Corvette, Goodwood Revival

For 1971 the engine options were base L48, performance LT1 and ZR1 using the 350 cui 5.7 litre small block and the 454cui / 7.4 litre LS5 and LS6 big block options. With the introduction of low lead fuel in 1971 the LS6 454’s power was detuned from 450 hp as used on the Chevelle SS to 425 hp. I have been unabke to determine if the car in these photo’s taken at last years Goodwood Revival is one of the 188 LS6 powered cars or one of the 5097 365 LS5 powered cars built in 1971.

Chevrolet Stingray Corvette, Goodwood Revival

The absence of “Sting Ray” name plates as used on the C2 Corvettes distinguish 1968 Corvette’s, the single word “Stingray” moniker was used from 1969 until 1976.

Chevrolet Stingray Corvette, Goodwood Revival

The futuristic door entry mechanism replaced with the hitherto ubiquitous release button and door handle combining them into a single recessed unit.

Chevrolet Stingray Corvette, Goodwood Revival

The C3 is said to be the first US car to do away with the side vent window in the door, power window’s were an option for the remaining pain of glass.

Chevrolet Stingray Corvette, Goodwood Revival

Among the 1971 options were white striped tyres at $28 or white lettered tyres at $42, 6,711 and 12,499 vehicles were delivered with these options respectively.

Chevrolet Stingray Corvette, Goodwood Revival

’71 Corvette advertising concluded that “it’s underneath what counts when it comes to performance”.

Chevrolet Stingray Corvette, Goodwood Revival

Despite strikes interrupting production 9,936 Stingray Corvette Coupé’s were manufactured in 1971.

Thanks for joining me on this “Low Lead 454” edition of “Gettin’ a li’l psycho on tyres” I hope you will join me again tomorrow. Don’t forget to come back now !

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