413 or 383?

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thesiren74

thesiren74

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I have a 413 in my car right now that has maybe 1,000 miles on it and ran a best of 13.05@ 105, but im picking up a 383 that also has 1,000 miles on it and it runs pretty strong also...so should i swap the 413 for 383? Thoughts? Yay or nay? Header clearance would be better i know with 383 since my fenderwell headers are cracked and rotted and i have a b-body set.
 
Since you asked, 413! No brainer! 30 cubes larger all in the stroke. It’s similar to taking a 360 crank into a 340 & @ .030 it equals a 372/373. What’s not to like?

How much is the 383?
 
Pretty awesome deal for the 383, problem with the 413 is it has cast pistons/ lower compression.
 
You could gain or loose depending on a 1001 factors not mentioned.
 
Maybe I'll just change the rear gear and run the 413 till i break it! Lol
 
thesiren74 said:
Pretty awesome deal for the 383, problem with the 413 is it has cast pistons/ lower compression.
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My question still stands. You said yourself the 413 runs strong. So what about low compression or cast pistons. It runs strong. You gonna dump nitrous in it? Stick a blower on it? Leave well enough alone.
 
Buy the 383 if it’s a good deal and you have a place to put it. Take it apert and check it out. I have stared into the innereds of a big block mopar many winter nights
 
The biggest issue with 413's is the lack of choise in pistons . Otherwise it is the same as any "RB" motor . This is negated these days by the custom piston industry . The 413 makes it's torque at a lower rpm but it's rpm is limited in it's stock form . The 383 has more aftermarket support and revs a little better . I think it's a tossup as to what's better . I just have more experience with the low decks . Hope this helps .
 
383Scampman said:
The biggest issue with 413's is the lack of choise in pistons . Otherwise it is the same as any "RB" motor . This is negated these days by the custom piston industry . The 413 makes it's torque at a lower rpm but it's rpm is limited in it's stock form . The 383 has more aftermarket support and revs a little better . I think it's a tossup as to what's better . I just have more experience with the low decks . Hope this helps .
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I agree 100% and that's usually my argument against the 413, BUT, he has a running engine that's strong in his words. So to me, the cubes win out.
 
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