I am looking to buy a 1994 Envision Illusion 32 and I know it has (2) 454 mercruiser magnum 7.4 litre. I have the serial numbers ---- OF 12647 & OF 14020. I am hoping there is a way to find the H.P. of these engines and any other usefull info. Thanks

The regular 7.4 liter (454 CID) engines were 330 HP. The Magnum versions were 365 HP.

Is there a mercruiser site that will give manual for my engines if i have the serial number? Or do I need to look for the # on the block to get info from web pages. Thanks

dougrussell.com

Here is a fairly complete list of merc manuals.

#1 90-68648 1963-1973 Engines & Drives - All
#2 90-71707 1974-1977 Engines & Drives - All
#3 90-95693 1978-1984 Engines - All 4, L6 & V8
#4 90-86137 1978-1982 Sterndrives - MC 120 to 260
#5 90-12935 1978-1993 Sterndrives - TR & TRS
#6 90-12934--2 1983-1990 Sterndrives - R, MR, Alpha One & Alpha One SS
#7 90-12410 1983-1993 Engines - GM V6
#8 90-44553 1985-1989 Engines - Mercury Marine 4 Cyl.
#9 90-14499--1 1985-1988 Engines - GM V8
#10 90-14693--1 1985-1989 Engines - GM 4 Cyl.
#11 90-17431--4 1988-1998 Sterndrives - Bravo
#12 90-814099--1 1989-1993 Engines - Diesel, 5 & 6 Cyl.
#13 90-816462 1990-1997 Engines - GM 4 Cyl.
#14 90-818177--2 1991- Cur. Sterndrives - Alpha One Gen II
#15 90-816463 1989-1992 Engines - GM V8 (No Hi Perf.)
#16 90-823224--2 1993-1997 Engines - GM V8 454 & 502 CID (Gen V - Gen VI)
#17 90-823225--1 1993-1997 Engines - GM V8 305 & 350 CID (5.0L 93-95)
#18 90-823226--1 1993-1997 Engines - GM V6 Gen II Balance Shaft
#19 90-823227 1994-1996 Engines - Diesel, V8, 7.3L (IDI)
#20 90-823228 1994-1998 Sterndrive - Blackhawk
#21 90-806934 1994 - Engines - Diesel, 5 & 6 Cyl. 3.0L, 3.6L & 4.2L (IDI)
#22 90-860074 1997 - Engines - Diesel, D-Tronic 2.8L and 4.2L (DI)
#23 90-861326--1 1998 - Engines - GM V8 454 & 502 CID (Gen VI and L-29)
#24 90-861327--1 1998 - Engines - GM V8 305 & 350 CID
#24
Suppliment 90-861327000 1998 - Engines - GM V8 377 CID (6.2L)
#25 90-861328--1 1998 - Engines - GM V6
#26 90-861329--1 1998 - Engines - GM 4 Cyl.
#27 90-861784 1998 - Engines - V-8 Diesel, D7.3L D-Tronic (DI)
#27
Suppliment 90-861784990 1998 - Engines - V-8Diesel D7.3L D-Tronic & D-Tronic LD
#28 90-863160 1999 - Sterndrive#65533;Bravo One-Two-Three & XZ/XR
#29 90-860316 All D1.7L DTI In-Line Diesel (available early 2001)
#30 90-863161 1998- Engines - 496 CID/8.1L Gasoline Engine
#31 90-864260 2001- Engines - 5.0L (305), 5.7L (350), and 6.2L (377)
#32 90-864261 2001- Engines - 4.3L (262)
#33 90-863757--1 2001- Engines - PCM555 Diagnostics
HP #1 90-817110 1989-1992 Engines - Hi-Performance (Mark IV
HP420/HP425/HP465, HP500 Bulldog, HP575)
HP #2 90-815526 1982 - Sterndrives - III & II, III, IV & V SSM
HP #2
Suppliment 90-849776 All Sterndrives - III A
HP #3 90-848294-1 1992-1998 Engines - Hi-Performance (Gen V HP425/HP450/HP465/HP500,
Mark IV & Gen V HP525SC & HP600SC, HP 800SC)
HP #4 90-848656 All Sterndrives - VI & VII (Non Dry Sump)
HP #5 90-840250 1999- Sterndrives - VI (Dry Sump)
HP #6 90-840283 1999- HP500 EFI
HP #7 90-840500 1999- Engines - HP377 EFI