Re: 383-engine swap to a 440 fora 1970 cuda 4-speed shaker!
[Re: SunnyMopar]
#2433872
01/13/18 01:32 PM
01/13/18 01:32 PM
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Joined: Mar 2007
Posts: 3,277 West Coast, USA
jbc426
master
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master
Joined: Mar 2007
Posts: 3,277
West Coast, USA
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The only difference in the motors is the 440 has the heads sitting on the taller (RB or raised block)block, so most of the accessories remain the same, ie bellhousing, clutch, throttle linkage.
You will need different head pipes, distributor, alternator bracket and possible the fuel line from the pump to the carb. Your Shaker base plate will need to be changed because the carb sits higher on the RB block.
This site is more of a self-help style of information as opposed to a one stop shop for all the answers. If you get much more specific about a single question or two, you will find you get a lot more answers. Good luck with the swap.
Last edited by jbc426; 01/13/18 01:33 PM.
1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's 1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
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Re: 383-engine swap to a 440 fora 1970 cuda 4-speed shaker!
[Re: bobby66]
#2433903
01/13/18 02:35 PM
01/13/18 02:35 PM
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Joined: Oct 2017
Posts: 28 Ontario. Canada
SunnyMopar
OP
member
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OP
member
Joined: Oct 2017
Posts: 28
Ontario. Canada
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Probably going to need a new base for that shaker. Thanks, Bobby All info & details help!
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Re: 383-engine swap to a 440 fora 1970 cuda 4-speed shaker!
[Re: SunnyMopar]
#2433948
01/13/18 04:08 PM
01/13/18 04:08 PM
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Joined: Aug 2003
Posts: 43,157 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,157
Bend,OR USA
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Mopar didn't put shakers on 383 cars in 1970, Hemi and HP 440 cars only in 1970. They did offer them on 383, 340 and the BB and Hemi cars in 1971 My message is use what you have first, if it doesn't fit then change the parts needed Are you running the stock 1970 exhaust system? If so does it have a H pipe between the exhaust manifolds and mufflers? If not you may be able to bolt your existing exhaust system up to the 440 motor with the same exhaust manifolds
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: 383-engine swap to a 440 fora 1970 cuda 4-speed shaker!
[Re: SunnyMopar]
#2436036
01/17/18 12:18 AM
01/17/18 12:18 AM
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Joined: Aug 2003
Posts: 43,157 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,157
Bend,OR USA
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I would use the same clutch, pressure plate, throw out bearing, starter and bell housing If the new motor makes enough torque and HP to need a better clutch you can always change it later I ran all three type, Borg and Beck, long and centrifugal clutches and both sizes of clutch in my old 1970 Hemi Cuda NHRA legal stocker, they all worked okay in that car You can buy a 10.95 clutch assembly that will bolt onto the 10.5 inch flywheel pattern and work fine with that starter, bell housing and the rest of the parts you have now
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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