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Old 10-05-2021, 10:37 PM
ripper1991 ripper1991 is offline
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Default Low mile engine bay pictures 1970 grand prix sj

Looking to refresh under the hood of my 1970 Grand Prix SJ in the near future.i have dealer catalogs and literature some in color and the others black and white photos.

for starters the 70 GP 455 ho in one photo has chrome valve covers and black air cleaner lid others have chrome valve covers and chrome lid. finally painted engine color valve covers and black lid.

i am not competing at the nationals but would like to know what is correct for my own sake.

you can send photos to bmwjmw@verizon.net Thanks Brian
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Old 10-05-2021, 11:13 PM
ripper1991 ripper1991 is offline
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my car has the latter ,painted engine color valve covers and black lid.which i thought was correct?
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Old 11-03-2021, 11:42 AM
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north north is offline
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No chrome dress-up on any 70 and up GP engines. But the 455 did use a dual snorkel air cleaner like the GTO albeit with a black lid.

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1969 Fbird (Base, 350 & Sprint Cvt’s - 400HO & TA Hardtops)
1969 LeMans (2dr & 4dr Hardtop and a Cvt)
1969 LeMans Safari 2 seat Wagon
1969 GTO (2 Cvt, 2 Hardtops & Judge Hardtop)
1969 Catalina (3 Cvt’s & a 2dr hardtop)
1969 Ventura 2 Seat Wagon
1969 Executive 4dr Sedan
1969 Bonnie Cvt
1969 Bonnie 3 Seat Wagon (2 of them)
1969 Bonnie Brougham (4dr Hardtop & Cvt)
1969 Grand Prix SJ (2 of them)
1969 2+2 2dr Hardtop (Canadian model)
  #4  
Old 11-04-2021, 02:53 PM
ripper1991 ripper1991 is offline
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Quote:
Originally Posted by north View Post
No chrome dress-up on any 70 and up GP engines. But the 455 did use a dual snorkel air cleaner like the GTO albeit with a black lid.
Thanks North,Only a shot in the dark, possibly they were using what inventory was left for the GTO,Formula and Trans am as 71 pontiacs were painted also?

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Old 11-04-2021, 04:11 PM
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north north is offline
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I doubt it because the 69 dual snorkel was GTO only and would not work on a 70 (cruise control interference). GM would often change "invisible" parts before or after model year change over but "content" items like appearance or other noticeable changes like that would not be allowed. Someone at Pontiac decided in 1970 to drop the chrome dressup trim on all 1970 GP's and big cars, assembly plants wouldn't override that.

__________________
My Break Away Squad
1969 Fbird (Base, 350 & Sprint Cvt’s - 400HO & TA Hardtops)
1969 LeMans (2dr & 4dr Hardtop and a Cvt)
1969 LeMans Safari 2 seat Wagon
1969 GTO (2 Cvt, 2 Hardtops & Judge Hardtop)
1969 Catalina (3 Cvt’s & a 2dr hardtop)
1969 Ventura 2 Seat Wagon
1969 Executive 4dr Sedan
1969 Bonnie Cvt
1969 Bonnie 3 Seat Wagon (2 of them)
1969 Bonnie Brougham (4dr Hardtop & Cvt)
1969 Grand Prix SJ (2 of them)
1969 2+2 2dr Hardtop (Canadian model)
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