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Help ID 5.7LX Mercruiser Engine
I can't find a straight answer anywhere. Some sources say these engines are EFI, some say they are not. Some say they are Vortec heads...some say not. I guess having them hooked to bravo's throws it off.
What I do know. 5.7LX with bravo III drives Serial numbers: 0k027498 0k027506 |
You should have a 1997 - 4 bbl carb rated at 250 hp propshaft. This engine has T - bolt V ignition, roller cam and what Merc called at that time Gen + cylinder heads (vortec persay). Also should have hand removable blue water drain plugs, one serpentine belt (new for 97) and RPM range was 4400 - 4800,
Also in 1997 was offered 5.7L with 2 bbl carb only rated at 210 hp propshaft. RPM range of 4200- 4600. Volvo had the same and was rated at 215 hp at the prop. and their 4 bbl was rated at 260 hp at the prop. FYI |
Originally Posted by BUP
(Post 4289373)
You should have a 1997 - 4 bbl carb rated at 250 hp propshaft. This engine has T - bolt V ignition, roller cam and what Merc called at that time Gen + cylinder heads (vortec persay). Also should have hand removable blue water drain plugs, one serpentine belt (new for 97) and RPM range was 4400 - 4800,
Also in 1997 was offered 5.7L with 2 bbl carb only rated at 210 hp propshaft. RPM range of 4200- 4600. Volvo had the same and was rated at 215 hp at the prop. and their 4 bbl was rated at 260 hp at the prop. FYI |
Its not uncommon to see bigger and or heavier boats with smallblocks using Bravo III's - basically somewhat under powered. It is very common with Sea Rays 26 ft and down, Cobalts, Chaparral, Crownlines, Regals amd so on from the REC side of boats
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