1972 OldsMobile Cutlass Supreme Convt

[Nicks91Z28]

Hi my dad has a 1972 Old Cutlass Supreme thats a convertible with a 350 ROCKET engine. How much HP and Tq do these things produce??? Thanks guys

[82KnightRider]

Comments: The 4-4-2 reverted back to an option on the Cutlass models for 1972 as the market turned away from gas guzzling, high insurance cost muscle cars. The 4-4-2 package became just a handling and appearance package available on any V8 Cutlass and included a heavy-duty suspension, wheels, and appearance items. For those who still craved performance, the W-30 option was still available, with its Force Air induction 455 V8 and enthusiasts cheered the return of the Hurst/Olds, although it was nothing like the 1968-1969 models. The Hurst/Olds was only available in Cameo White with black and gold accents and could be order with numerous luxury options.

Production:
Holiday Hardtop Coupe: ?
Convertible: ?

Engines: (SAE Net)
350 V8 160 bhp @ 4000 rpm, 275 lb-ft @ 2400 rpm.
350 V8 180 bhp @ 4000 rpm, 275 lb-ft @ 2800 rpm.
455 V8 250 bhp @ 4200 rpm, 370 lb-ft @ 2800 rpm.
(Hurst/Olds) 455 V8 300 bhp @ 4700 rpm, 370 lb-ft @ 2800 rpm.
(W-30) 455 V8 300 bhp @ 4700 rpm, 410 lb-ft @ 3200 rpm.

Performance:
NA

[82KnightRider]

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[Nicks91Z28]

Originally Posted by 82KnightRider

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82 thanks man Wow i didnt expect the HP and tq to be that low

[vette442]

Originally Posted by Nicks91Z28

Hi my dad has a 1972 Old Cutlass Supreme thats a convertible with a 350 ROCKET engine. How much HP and Tq do these things produce??? Thanks guys

What's the first letter in the VIN?

M is 350 4 bbl dual Exhaust (200 *NET* hp / appx. 260 GROSS hp, for apples-to-apples comparisons to 1971 and older engine specs)
K is 350 4 bbl single exhaust (180 net hp)
H is 350 2 bbl sngle exhaust (160 net hp)
J is 350 2 bbl dual exhaust (175 net hp)

The second letter (M, Z, etc) is the assembly plant code.

82KnightRider - there was one more 455 in '72 besides the 250 (U) and 300 (X) hp versions - the V code 270 hp version, which was only used with the M20 4 speed. Had big valve heads and used the W30 automatic camshaft, so it gave the extra 20 hp.