Does the 502 415hp have Cast Internals?
#1
Does the 502 415hp have Cast Internals?
I have searched the internet and can not find my answer. I found a pair of new ‘Base 502 415HP’ engines at a reasonable price. (Actually everyone that sells them are pretty close in price)
I am trying to decide to build a pair of 496’s or buy crate. I am leaning to building, because I can put forged everything in and some nice heads for the same price.
I am trying to decide to build a pair of 496’s or buy crate. I am leaning to building, because I can put forged everything in and some nice heads for the same price.
#4
Registered
Platinum Member
call victoy marine. He has brand new from merc ones on the shelf with tins for a fair price.
He advertises here on the board.
Yes, they are all forged internals.
He advertises here on the board.
Yes, they are all forged internals.
#6
Registered
Platinum Member
The exhaust on a factory 502mpi is very restrictive. That is all the power you are going to get out of it.
If you upgrade to a nice header, then there is no reason you can't do a cam swap, and a few other things and get around 550-600HP out of those engines.
A compresion increase wouldn't hurt those things either.
If you want a recipie for a nice 525hp 496, I just built 2 of them and they dynoed very well.
#7
Registered
Join Date: May 2002
Location: Rochester, NY
Posts: 589
Likes: 0
Received 0 Likes
on
0 Posts
#8
That is the way the mpi is set up from the factory. The original carbed 503 was only 385 I think.
The exhaust on a factory 502mpi is very restrictive. That is all the power you are going to get out of it.
If you upgrade to a nice header, then there is no reason you can't do a cam swap, and a few other things and get around 550-600HP out of those engines.
A compresion increase wouldn't hurt those things either.
If you want a recipie for a nice 525hp 496, I just built 2 of them and they dynoed very well.
The exhaust on a factory 502mpi is very restrictive. That is all the power you are going to get out of it.
If you upgrade to a nice header, then there is no reason you can't do a cam swap, and a few other things and get around 550-600HP out of those engines.
A compresion increase wouldn't hurt those things either.
If you want a recipie for a nice 525hp 496, I just built 2 of them and they dynoed very well.
#10
I have a friend who did a 502 in a 272 & it runs really well. Close to 70 if not 70 I think.