Switching from 383-440 engine mounts

[70RTSE383]

I am building a 440 for my 70' Challenger. It came with a 383 originally. What do I need to do about engine mounts and the K member? I will be using factory ac and have all 383 and 440 brackets as both engines came with ac. Anything else I need that is different from the 383. I'm using everything I can from the 383 such as heads (fresh) water pump, and housing etc.

[6bblgt]

engine brackets & motor mounts are the same

K-member mounts are the same,
..... but 440 would've had a protective skid plate because of the deeper oil pan (440/six pack/HEMI) VS. "402" for the 383 (both oil pans will work & you can buy the skid plate if you want to add it)

some of the brackets that hold the A/C compressor are different between the 440 & 383

exhaust manifolds are the same 383 4bbl VS. 440, but exhaust head pipes are a little longer for the 440 - your 383 pipes might work???

[anlauto]

Yup..sounds like you're good to go..

[6bblgt]

skid plate - http://www.megapartsusa.com/proddetail.asp?prod=MP%2DSP2

383 * 402 oil pan - http://www.megapartsusa.com/proddetail.asp?prod=101%2DOP402

440HP * 440+6 * HEMI oil pan - http://www.megapartsusa.com/proddetail.asp?prod=101%2DOP564

[anlauto]

You can get away with using the stock 383 oil pan too....but as pointed out....More is better when it comes to oil.

[70RTSE383]

Thanks very much for the info. The mounts and K member were my biggest concerns. Although the aftermarket exhaust is in good shape I am going to replace with headers and 2.5" exhaust with " moderate" mufflers. The one on it is just too quiet for a muscle car and is 2 1/4". I will replace oil pan with larger Hemi type and likely skid plate. Also windage tray if it doesn't have one on the 383.

[headejm]

Factory 383 HP should have a windage tray.