well i''m only 17 so no rush, but hopefully in a few years i will have the
money for a new engine and tranny, rear end, frame beefing... I have a 91
marquis (efi) and i''m wondering if a 351 carbed crate motor will fit fine?
I''m thinking height is the only dimention of concern.

And, i want this car to still be driven lots like it was made to do, so i
would like to keep the milage above 15mpg and on pump gas. These 351
crates go from 300-400hp and of course some are stoked for more hp. Is
there any genarel hp or compression ratios, cam specs that would give
me an idea of mpg and being pump gas run?

same engine specs- 351 and 400hp fuel injected is also and option, but i
like the sound and simplicity (somewhat simpler) of a big carbed engine.



Heres an example of what i''m lookin at:


400 HP 351w Cobra / Mustang

PRECISION MACHINED 351W BLOCK
MICRO-POLISHED & DEBURRED NODULAR CRANKSHAFT
SHOT PEEN HARDENED & STRESS RELIEVED CONNECTING RODS W/ 190,00
PSI ARP BOLTS
HYPEREUTECTIC HEAVY DUTY PISTONS 9.7 TO 1 COMPRESSION
SPEED PRO PISTON RINGS
3 PIECE STEEL ROLLER STYLE TIMING CHAIN
Xtreme Energy Comp Cams Hydrualic Roller Camshaft New
NEW MELLING OIL PUMP AND SCREEN
EDELBROCK RPM ALUMINUM HEADS 60cc COMBUSTION CHAMBER
STAINLESS STEEL SWIRL POLISHED INTAKE VALVES
STAINLESS STEEL SWIRL POLISHED EXHAUST VALVES
COMP CAMS MAGNUM ROLLER 1.6 RATIO ROCKERS
HARD SEATS FOR UNLEADED OR REGULAR FUEL
HEAVY DUTY 1.45 DIAMETER VALVE SPRINGS, 7 DEGREE LOCKS
NEW HEAVY DUTY CHROME MOLY PUSH RODS
NEW CHROME FRONT SUMP 5 QUART OIL PAN
ALUMINUM TIMING CHAIN COVER WITH SCALE
FORD COBRA BLACK WRINKLED ALUMINUM VALVE COVERS
HEAVY DUTY SFI APPROVED STANDARD FLYWHEEL
NEW EDELBROCK PERFORMER RPM DUAL PLANE INTAKE MANIFOLD
NEW 4 BARREL 650 CFM EDELBROCK CARBURETOR WITH ELECTRIC CHOKE
HIGH VOLTAGE ELECTRONIC PERTRONIX BILLET DISTRIBUTOR AND COIL
8 MM ACCEL SILICONE WIRES
NEW CHROME THERMOSTAT HOUSING
NEW HIGH VOLUME FUEL PUMP
HIGH FLOW WATER PUMP
CHROME DIP TUBE AND DIPSTICK
NEW BLACK WRINKLED COBRA OVAL AIR CLEANER WITH PCV VENTILATION
SYSTEM
NEW STEEL BRAIDED FUEL LINES AND GAS FILTER
HOT RUN TESTED INCLUDES SETTING INITIAL AND FULL TIMING ADVANCE
VIDEO FOOTAGE SHOWN OF YOUR ENGINE IN TEST STAND
CHROME ONE WIRE HOOK UP 100 AMP ALTERNATOR
MARCH POLISHED PULLEYS AND CHROME BRACKETS
NEW V-BELT INSTALLED AND TENSION ADJUSTED
BALANCED, BLUE PRINTED, ASSEMBLED BY ASE TECHNICIANS
__________________
close only counts with shotguns and hand-grenades

91 marquis. no rust. 35k miles.
[IMG]

 

I don''t see fitting the engine as being the problem. There might be minor clearance issues with the deck height, but it''s nothing a cool custom hood scoop couldn''t fix. Getting your stock gauges to work right will be an issue. And you''ll also have to drop the tank and remove the high pressure pump.

IMO it would be easier to start with an EFI 5.8 and build it up with GT-40 parts. That way the electronics will at be close enough to get it working. Plug EFI motors are easier to start and get better economy.

15 MPG is not asking much. There''s no reason a 350-400 HP Windsor couldn''t get 20 on the freeway.

Edited by: BFM70

 

sweet. hopefully i could make it fit under there, i''m sure it can be done.
Probly go with a 351 carbed crate, 400hp, and shiny with aluminum
edelbrock heads, carb, and intake, painted and polished aluminum so it
won''t be rustin. Not to mention, all the parts will be high performance, and
will fit right with the other parts to maximise the efficiancy and hp of the
engine. The car is a mint, white 91 with 35k miles on it to so investing in a
nice 8 grand 400hp engine would not keep me awake at night.... well ide be
driving it all night, haha. Thanks, 15-20 mpg is great news, i''ve seen that
pretty much consistantly with them also.

thanks again, andy

 

RPI use the highest quality components available to deliver a winning product.
If you want to see the winner's circle more often or your just after a quality high performance stroker engine, for your Street/Strip, Muscle Car, Hot Rod, Cruiser or Marine V8, your quest for horsepower begins with Raw Performance Industry.

 

15 MPG is not asking much. There''s no reason a 350-400 HP Windsor couldn''t get 20 on the freeway.

 

thanks for all the information guys