300 4 barrel conversion?
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Joined: Jun 2014
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300 4 barrel conversion?
He all, ive been having trouble with my stock intake and carb set up so I've been contemplating switching my 66 300 over to a 4 barrel setup. Has anyone here done something similar? My plan is to use the Offenhauser Dual Port Intake Manifold. headman duel headers and a Edelbrock Thunder Series 500 cfm carb. Is this a good idea?
Super Moderator
Joined: Apr 2004
Posts: 34,495
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Great idea. Believe it or not, you are not alone:
https://www.ford-trucks.com/forums/1...swap-help.html
And billions more 4bbl, header, EFI manifold swap, ignition and exhaust threads in that forum.
https://www.ford-trucks.com/forums/1...swap-help.html
And billions more 4bbl, header, EFI manifold swap, ignition and exhaust threads in that forum.
Lead Driver
Joined: Aug 2003
Posts: 6,305
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From: Boulder Creek, Ca
Not an authority by no means, and do not intend being a nay sayer, but you may want to review the trans/axle gearing to determine if they meet 4bbl application. Wonder if you will need to upgrade the Cam and Lifter's for the 4bbl application? Having gone from a 2bbl to a 4bbl on my 65 F100, with Dana 44, 3.54 axle ratio, and T18, I rarely, if ever, get the Holley into the secondaries. Anyhow, just wondering, perhaps more knowledgeable member can advise?
Logistics Pro
Joined: Feb 2011
Posts: 3,522
Likes: 11
From: Townsend, MT
Not an authority by no means, and do not intend being a nay sayer, but you may want to review the trans/axle gearing to determine if they meet 4bbl application. Wonder if you will need to upgrade the Cam and Lifter's for the 4bbl application? Having gone from a 2bbl to a 4bbl on my 65 F100, with Dana 44, 3.54 axle ratio, and T18, I rarely, if ever, get the Holley into the secondaries. Anyhow, just wondering, perhaps more knowledgeable member can advise?
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