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12-28-2010, 04:10 AM
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#1 |
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Registered User
Join Date: Nov 2010
Location: Fairbanks Alaska
Posts: 126
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What was my stock carb?
What was the stock quadrajet model in a 1970 Big Block 400?
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12-28-2010, 09:01 AM
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#2 |
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Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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Re: What was my stock carb?
The Q-jet carb for your big block would have been a 4MV.
Jim
__________________
1971 Shortbox step side 4x4, 350 sbc, 3:07 rear end 1965 Impala SS 400 sbc, Muncie rock crusher 1966 Impala SS 396 bbc, TH 400 1969 El Camino, 350 sbc, TH 350 1971 Snowplow built on a Blazer frame 1972 GMC Short bed, stepside, TH 400, 427 BBC |
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07-22-2012, 02:54 AM
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#3 |
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Senior Member
 
Join Date: Aug 2008
Location: Cedar Park, Texas
Posts: 7,500
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Re: What was my stock carb?
Any idea on the exact pn for this q jet? I also have a 70 bb 400 Ina longhorn
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07-22-2012, 03:50 AM
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#4 |
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Registered User
Join Date: Aug 2010
Location: Edwards, CA
Posts: 7,503
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Re: What was my stock carb?
1970 396 310hp Rochester 4MV P/Ns... 10 all 7040509... 20/30 all 7040206... But the choke vacuum breaks and jets are different per application. So check the specifications section of the factory chassiss overhaul manual specific to your model year. The parts catalog I'm using ('79 printing) does not have replacement 4MVs in it only repair kits keyed to these numbers.
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Thanks, Tim * VIN/Model Decoders * Power Team Charts (engine/transmission/gear ratio) * Post Your Pickup SPID ** Blazer SPID ** Suburban/Panel SPID * RTFM ... Read The Factory Manuals... download 'em here Highlanders ** Do you have a 1972 Plaid Pickup? ** Plaid Blazer ** Plaid Suburban Last edited by SS Tim; 07-22-2012 at 03:56 AM. Reason: barking dog distraction |
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