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#1
05-28-2008, 10:37 PM
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Diff Between '69 and '70 RA IV Carb Pan
Can anyone tell me what the difference is between the '69 and '70 RA IV Carb Pan? I've been told that one of them had holes drilled in it to enable adjustment of the RA V carb while the pan was installed on RA V motors.
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#2
05-28-2008, 11:34 PM
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ra iv pans
A 70 pan has a provision for the 70 model calif bowl vent (approx 1/2 around by 3/4 tall) in the front of the carb which became standard an all rochesters in 71. a 69 has no such provision. This had nothing to do with holly's.
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63 Z-11 JACKSHAW CHEVROLET CAR 67 PLUM SAFARI WAGON 68 ROAD RUNNER HEMI 4- SPEED 69 RA V JUDGE 70 RA III 4- SPEED CONV. GTO 73 FIREBIRD 98 MUSTANG CONV 05 LEXUS SC430 CONV 08 LEXUS ES350 15 SILVERADO |
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#3
05-28-2008, 11:42 PM
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The largest difference is that the 70 has "bumps" both in the front and the rear. I have always understood that this was to clear a Holley carb. Maybe Henley has it right, but this is what I have always read. Anyway, that should help you recognize one. I found one of these pans for the 70 Judge that just sold on Mecum.
If the 70 bowl vent is only on the front of the carb, why are the pan's "bumps" in both the front and rear? There may be another smaller difference, but I do not remember one.
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My Wife: "I thought I married a sophisticated business man, but what I actually got was a redneck fisherman with muscle cars." Some people know all of their rights, but none of their obligations. |
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#4
05-28-2008, 11:56 PM
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I believe I remember a hole in the pan for this vent that was plugged with a small rubber plug. True, that has nothing to do with a Holley carb, but I assume that the bumps do. These bumps are not on a 69 pan either.
Quote:
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My Wife: "I thought I married a sophisticated business man, but what I actually got was a redneck fisherman with muscle cars." Some people know all of their rights, but none of their obligations. |
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#5
05-29-2008, 06:38 AM
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Thanks for the info guys.
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#6
05-29-2008, 07:40 AM
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i have my 69 & a 70 & need to compare but i do remeber humps in the 70 pan.
BLKBRD do you have a ram air V?????? im building mine real soon all i need is an intake
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1969 Early 01D JUDGE #s MATCH RA III 4 Spd (Concours Restored) 1969 PRO STREET GTO 2500 lbs. ALL ALUMINUM 505 1969 RARE All Glass GTO (FOR SALE) YOU NEED THIS AC Cobra Kit Car 521 670 HP/715 Trq LOOKING FOR V PARTS !!!!!!!!!!!! |
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#7
05-29-2008, 07:59 AM
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I believe the bumps are there because the Holley was originally considered for use on the RA IV SD motor in 70 and the bumps were needed to clear the corners of the carb.
Same bumps and plugged hole appear in the 70 RA Formula pans.
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Some guys they just give up living And start dying little by little, piece by piece, Some guys come home from work and wash up, And go racin' in the street. Bruce Springsteen - Racing In The Street - 1978 |
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#8
05-29-2008, 11:50 AM
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Quote:
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#9
05-29-2008, 11:58 PM
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Guys,
Thanks for the input. Your responses have confirmed for me that I have a '69 pan, which is what I need. After having read several articles in magazines, I was convinced that I had the wrong pan. Thanks again, Pat |
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