Author Topic: 197 Heads  (Read 382 times)

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Offline Bandit one

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197 Heads
« on: July 29, 2009, 11:44:37 AM »
Can someone give me some info on these 197 heads? How rare are they, what were they commonly used on etc...?
1978 Trans am Special Edition W72 4-speed (Original)(489 built)
1981 Turbo Trans am (Original)
1979 Firebird Esprit (Original)
1979 Trans am (drag car, 502 chevy)
1979 Trans am (403 project)
1978 Firebird Formula (Parts car)
1981 Firebird (267chev)

Offline brian c

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    • Y88 Resto
Re: 197 Heads
« Reply #1 on: July 29, 2009, 11:56:05 AM »
http://www.wallaceracing.com/cgi-bin/head.cgi

1971 455 335HP (455HO) 197(191) rd port 2.11/1.77 111cc

Can't comment on the rarity or what they were used in other than it looks to be something with a 455 HO so perhaps a TA/Goat/??

1978 Y88, '70 455 HO block bored 0.060, TH350, 3.42:1 gears...Oct '08 Fbodywarehouse Calendar - Woot!
1980 Firebird - no engine/tranny... to be pacecar clone

Offline Mr. P-Body

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Re: 197 Heads
« Reply #2 on: July 29, 2009, 02:13:39 PM »


   Yup, T/As and GTOs. 335 HP, 455"HO" (High Output). ALL T/As in '71 were equipped with 455HO.  A handful were in T-37s.  Good head for a large cubed engine. HUGE combustion chambers (around 110 CCs).  Better left to restoration guys these days. The Edelbrock head is "better" right out of the box, and it's by no means, "ready".  Once the E-head is "ready", FAR superior to ANY factory head short of Ram Air V.

   I've recently seen a very nice pair of the 197s go for $1,500. They were in excellent condition and the date code was what the buyer was looking for.

Jim