Mercruiser 7.4 upgrades???
#11
Registered
Thread Starter
Join Date: Feb 2007
Posts: 37
Likes: 0
Received 0 Likes
on
0 Posts
I believe it says 7.4 Thunderbolt on cover. How much $ can I find 502mag for and what would I ask for my 454 complete unit? Is a Mag 454 fuel injected? Because mine has the 4 barrel on it.