306 Ford Racing Crate Engine

darthapple35 · Jun 25, 2012

info on the crate engine-

E303 Camshaft - Automatic or Manual Transmission,

shown with water pump, sold separately,306 cubic inch
340 hp @ 5500 RPM,9.0:1 compression ratio (nominal) ,Forged Mahle Pistons 4.030"
Aluminum Ford Racing "X" cylinder heads, M-6049-X306 with 1.94" intake valves and 1.54"

exhaust

valves (production is 1.78"/1.45"),50in/oz imbalance rotating assembly (common to 1981 and newer 302's)Seasoned block and precision ground crankshaft,"Ford Racing" polished aluminum valve covers M-6000-K302R,
Production forged steel connecting rods, New production 4-bolt crankshaft damper M-6316-M50
Hydraulic roller camshaft M-6250-E303.

this will be backed with a T5 with either 3:50 or 3:70 gears

does anybody have any experience with this engine and how it performs on the street? I know I can do better than 340hp but going from a 225hp 289 with a c4 2:80 gearing this will already be PLENTY enough more power also I like the

reliability

of it being professionally built.

Any thoughts, opinions, experiences, etc. appreciated

robbz28 · Jun 25, 2012

I have no experience with this motor but I have been looking at it HARD. Its a good value and its from Ford. I can tell you that once u gear the rear to match that t-5...you will be all smiles when that 340 horses turns loose. My other motor I been eyeballing is the blueprint 347 with 415 horses...

bartl · Jun 29, 2012

If you're going to spend money, go big > http://www.latemodelrestoration.com...ustang-Ford-Racing-Frpp-363-Boss-Crate-Engine

If all you are looking for is 340 horses at the crank, get a '85 or '87-93 5.0HO, home port the E7TE heads, use the "E" bumpstick and you'll be darn close. Even better would be to rework some small chamber heads ( < '68) with home port, hardened seats with 351W valves and screw in rocker studs.

GTA6t7 · Jul 1, 2012

darthapple35 said:
info on the crate engine-

E303 Camshaft - Automatic or Manual Transmission,

Engine
shown with water pump, sold separately,306 cubic inch
340 hp @ 5500 RPM,9.0:1 compression ratio (nominal) ,Forged Mahle Pistons 4.030"
Aluminum Ford Racing "X" cylinder heads, M-6049-X306 with 1.94" intake valves and 1.54"

exhaust
valves (production is 1.78"/1.45"),50in/oz imbalance rotating assembly (common to 1981 and newer 302's)Seasoned block and precision ground crankshaft,"Ford Racing" polished aluminum valve covers M-6000-K302R,
Production forged steel connecting rods, New production 4-bolt crankshaft damper M-6316-M50
Hydraulic roller camshaft M-6250-E303.

this will be backed with a T5 with either 3:50 or 3:70 gears

does anybody have any experience with this engine and how it performs on the street? I know I can do better than 340hp but going from a 225hp 289 with a c4 2:80 gearing this will already be PLENTY enough more power also I like the

reliability
of it being professionally built.

Any thoughts, opinions, experiences, etc. appreciated

I have this engine in my 67. It is a geat engine for the money. Runs strong and has a Ford warranty to boot. I'd buy another one without hessitation.

darthapple35 · Jul 16, 2012

would you recommend 3 50 gears or 3 70 gears?

robbz28 · Jul 17, 2012

Depends on which t5 you have. If it has the 2.95 first gear the id probably do 3.70 if the 3.31 first the 3.50

PoppyMod · Jul 18, 2012

Hi,
For the engine deal, research Ford Strokers, they put together some super blocks both long and short. Plus you get custom knowledgeable support and access to custom cam profiles. As for the gearing, I run a T5z (.63 5th) w/2.95 1st. A 3.70 might be too low, especially with a 3.31 Ist! I run a 3.55 and it all works well.
happy trails!

palerider94 · Jul 18, 2012

Ive got a Ford Strokers 347 in my 70 very happy with it - great engine, quality parts, and excellent customer service. I have a 66 I'm building now that I don't have the same "need for speed" and seriously considering the ford racing 306. Matter of fact I talked to Ford Strokers about building something similiar and he said not cost effective for them since Ford Racing does in such quantity they can get much better pricing on components.

65coupe408w · Jul 18, 2012

my fastback had one of those motors in it when I purchased it, I had a top loader 4 spd and 3.90 gear at the time. The car was fun to drive plenty of power for having fun with. That said I had a little 408w laying around and the rest is history...see sig

PoppyMod · Jul 18, 2012

palerider94 said:
Ive got a Ford Strokers 347 in my 70 very happy with it - great engine, quality parts, and excellent customer service. I have a 66 I'm building now that I don't have the same "need for speed" and seriously considering the ford racing 306. Matter of fact I talked to Ford Strokers about building something similiar and he said not cost effective for them since Ford Racing does in such quantity they can get much better pricing on components.

Hi
I agree, a 306 after a running 347 would not be a legitimate choice and use of funds. Anyone seeking a 306 (only a .o40 over a 302) would be seeking a a basically stock 302 perhaps with a little energy added. A agree, as well, FordStrokers would not seek such a venture. Good Luck with FMS.

CUAviator · Jan 29, 2018

Regarding the engine in the OP - does anyone know what the numerical water temp and oil pressure should be? The car I've got has the (gross) Dakota Digital gages that simply display a number and I have no idea what the ranges should be. I've tried the wikigoogle machine, but can't find anything.

rbohm · Jan 29, 2018

the ford 306 crate engine indicated is a good one to get, no experience with one yet, but factory style crate engines do well and as noted come with a factory warranty.

as for what gearing to run with a T5, i would go with the 3.50 gear. its a good all around gear, with either first gear ratio, so you get plenty of torque multiplication off the line, and a nice gear spread overall. unless you are going racing, a lot, and need the lower gear, more than the 3.50 is too much gear imo.

306 Ford Racing Crate Engine

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