65 F-85 engine replacement
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Joined: Jun 2012
Posts: 54
From: Cheney, Wa
65 F-85 engine replacement
I am thinking about replacing my original 330 ci engine with a big block. Which engine is the closest to being able to drop right in without the mess of the motor mounts, bolt patterns, etc of a non-matching. From what I can tell a 400 should do the job if I can find one.
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Joined: Feb 2011
Posts: 881
From: Ironton Ohio 45638
Old(s) Fart
Joined: Mar 2007
Posts: 50,831
From: Northern VA
All of them bolt in. All BBO motors are externally identical, so 400, 425, 455 are all the same. Use the ORIGINAL motor mounts for the 330 (Anchor P/N 2261). DO NOT get "455" motor mounts. Use the 69-72 W/Z exhaust manifolds. Use the water pump, accessory brackets, and pulleys from the 330 as a matched set. All the accessory brackets will bolt to the BBO (there are two sets of mounting holes in the brackets if needed). Get a bigger radiator. Start saving for a TH400 when the Junkaway pukes. Start saving for new rear tires.
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m_tanner_75
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Dec 28, 2008 02:06 PM
