454 to 502

[wet77]

Will a 502 bolt into the mounts in a jet boat that is set up for a gen4 454?
4-point rail type mounting;)
I am having dreams of crate motors:D

[powerplay230]

Yeppers..

[Oldsquirt]

Originally posted by wet77
I am having dreams of crate motors:D
Then shouldn't you be dreaming 572" ? :D

[victorfb]

yep, bolts right up. :D
damn, and here i thought id be one of the few that has a 502 in a jet boat. what happened to the 396, 427, 454's? :p
i know i know, ok, 318's, 350's, 440's, 360's, 390's, 460's, ect, ect, ect. i was talkin the cheby big block stuff. :p

[Dave C]

I've actually done it. Bolts right up.
Everything is the same. Only thing different is the timing cover and oil pan.
I bought the 502 shortblock and ran good Mark IV heads. Valve train is a little different. It needs Gen VI lifters. The cam is the same except they machine a groove on the front of the cam for the cam retainer.
Good conversion. :D Good luck
FYI, sh*t-can the stock 502 timing chain!

[victorfb]

Originally posted by Dave C
I've actually done it. Bolts right up.
Everything is the same. Only thing different is the timing cover and oil pan.
I bought the 502 shortblock and ran good Mark IV heads. Valve train is a little different. It needs Gen VI lifters. The cam is the same except they machine a groove on the front of the cam for the cam retainer.
Good conversion. :D Good luck
FYI, sh*t-can the stock 502 timing chain!
what is wrong with the stock timing chain? when building my motor i couldnt find an aftermarket timing set. so i used the stock one.

[cstraub]

The single roller chain on the stock Gen VI is notorious for stretching. Rollmaster makes a double roller with Iwis chain that fits underneath a stock GM Gen VI cover. This is a billet set with 9 position keyway for adjustability.
Chris

[victorfb]

damn, i wish i would have known about this earlier. i allready have the motor in and all and dont feel like pulling the pan and cover off to change timing sets now. i guess ill have to run the stocker for this season and check on the other for the off season mods. thanks for the info. and sorry for hijacking the thread.:D

[wet77]

Thanks for the feedback
I am looking into a 502 its just the d@** $ money issue
If only I could find that money tree in my woods:D
The 572 would be great too ;)
Anyone want to loan me $14,000:D
Interest free:D