1970 Chevelle SS LS6

The Beast

1970-Chevelle-LS6
This mini-profile first appeared in the April 2006 issue of Collector Car Market Review.  (C) Copyright 2006- VMR International, Inc. All Rights Reserved.

In response to competitive pressure, for 1970 GM officially dropped its edict that no more than 400 cubic inches could reside in it’s intermediate muscle cars. All immediately dropped in their biggest motors. Each also produced a special, high-performance version of their monster mill.

For Chevy, it was known as it’s option code, LS6, and it resided in the newly redesigned Chevelle SS. Arguably the most sought after of all Chevelles, the new body was clean and attractive. Interiors were likewise well-designed. A bench seat was standard, but the buckets and console options really dressed things up. Other options to look for: cowl induction and the rallye dash w/full gauges. The LS6 motor itself mandated additional cost “optional” heavy duty equipment.




But the star of this show is the motor. At 454 cubic inches, 450hp @6500 rpm and 500ft lbs torque, it featured high compression (11.25:1) and a solid-
454ci LS6 V8
Chevy never advertised this monster, but everyone knew what it was. For '71, only the Corvette got it.
lifter camshaft. It was very, very strong indeed. In stock form--on those skinny 14” bias-plys, no less--it would run mid-13's at close to 110 mph. Impressive. A properly running HEMI would give it a go, and the slightly handicapped longer stroke motors from the GM camp were a threat in some circumstances. Ford had the 429 SCJ, but it rarely could answer the call among this group.

The LS6 SS enjoyed unprecedented sales success for such a high-performance motor, actually outselling the more docile LS5. 4468 of them found their way into the hardtop, but only a reported 20 in the convertible. Because of such big numbers, hardtops are fairly plentiful. They’re also pretty easy to fake, so watch yourself. Prices are strong, but there are too many out there for them to consistently reach original HEMI price territory. The exception is the convertible, and if this market keeps going, we may see a $500,000 Chevelle soon. (see update below)

MARKET ACTIVITY
Lot
Cnd
Bid
Res
Auction

1970 Chevelle SS Htp LS-6/4spd
2
$70,000
S
ME SC 10/05

1970 Chevelle SS Htp LS-6/AT
2
$63,000
S
BJ AZ 01/05

1970 Chevelle SS Cnv LS-6/4spd
1
$300,000
S
BJ AZ 01/05

1970 Chevelle SS Htp LS-6/4spd
1-
$103,000
S
BJ PB 04/05

1970 Chevelle SS Htp LS-6/AT
1-
$52,000
S
ME RO 05/04

1970 Chevelle SS Htp LS-6/AT
1
$79,000
S
ME SC 10/05

1970 Chevelle SS Htp LS-6/AT
1
$79,000
S
ME SC 10/05



Update 2016: Values rose sharply for another year after this article was first published, then plummeted during the "Great Market Correction".  And, yes, the $1/2 million convertible became a (short-lived) reality. Values have modestly crept upward, and recently they have shown a spark of momentum. As for not reaching HEMI territory, after the change in market (when this was first published there was a feeding frenzy for anything HEMI) they closed the gap somewhat but in general, a comparable HEMI still brings more.

Current Values:  1970 Chevelle LS6 value

The editors at Collector Car Market Review


Clubs/Information/Resources

Chevelle SS 1964-1972, A Muscle Car Source Book by Jeffrey Steffes
isbn 0972986928

Very Active All Things Chevelle Website: http://www.chevelles.com



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