300 needs more stroke
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New User
Joined: Dec 2001
Posts: 11
Likes: 0
300 needs more stroke
Been thinking about rebuilding a 300 in an 82f150 that i have just sitting in the back yard. I've decided to build a high performance motor.
Ideas:
1. Stroke the motor more, say at least 4.5".
2. efi exhaust headers
3. offy intake, 4 barrel carb
4. head work
I'm thinking this extra stroke will give me the power i want.
My guess 300-350 hp, 400 lb-ft torque.
Comments?, ideas?
Ideas:
1. Stroke the motor more, say at least 4.5".
2. efi exhaust headers
3. offy intake, 4 barrel carb
4. head work
I'm thinking this extra stroke will give me the power i want.
My guess 300-350 hp, 400 lb-ft torque.
Comments?, ideas?
Senior User
Joined: Apr 2002
Posts: 484
Likes: 0
From: St. Louis, MO USA
300 needs more stroke
The extra stroke really won't do too much for a motor that was a stroker in the first place. Sure it will give more torque, but probably so low down that you'll never find a gear ratio to keep you in that rpm range. Plus, it wont rev high enough to get a good hp peak, so you might get up to speed fast, but you wont be going that fast. I'd focus more on porting the head, some flat top pistons, and some other tricks to raise compression.
Posting Guru
Joined: Dec 2001
Posts: 2,017
Likes: 2
From: Southeast FLA
300 needs more stroke
They may be strokers, but I'd say there's room for more torque from idle to 1500 RPM anyway. I have a 5-speed and wouldn't mind seeing more "oompf" around there.
Not that I'm going to do it, but where would one get the crankshaft and connecting rods to do it?
Not that I'm going to do it, but where would one get the crankshaft and connecting rods to do it?
Posting Guru
Joined: Dec 1999
Posts: 1,903
Likes: 2
From: Copley, OH
300 needs more stroke
Clifford makes a stroker kit for the 300, it increases the stroke to 4.375. It costs an arm, a leg and your first born and their service is typically so bad, you may wait a very long time to get it. But why bother? All you really get is reduced volumetric efficiency and a lower rev limit on an engine that is somewhat low revving in stock form. The 300 already has all the stroke than the stock head can possibly support. Spend your money on the head, you can pick up over a thousand usable RPMs
Post Fiend
Joined: Nov 2001
Posts: 14,947
Likes: 6
From: Topsfield, MA
300 needs more stroke
I second strangeranger.
Primary rig is Green Thunder:
95' F-150 XLT 4x4, 302, 5 spd, MSD 6A, Flowmaster American Thunder Exhaust, Sunroof, Clear corners w/ Diamond headlights, CD player with 2 10" subs and some 32" BFG Muds
.
Check out my Gallery for a look-see.
Then theres:
99' Mustang GT 4.6L
88' F-250 Heavyduty 4x4 351/c6
95' Mercury Cougar 4.6L V-8
80' E-350 300/6 with a
3 spd column shifter. Weighs around 7,000lbs w. 65mph top speed, who wants to race me!
Primary rig is Green Thunder:
95' F-150 XLT 4x4, 302, 5 spd, MSD 6A, Flowmaster American Thunder Exhaust, Sunroof, Clear corners w/ Diamond headlights, CD player with 2 10" subs and some 32" BFG Muds
.Check out my Gallery for a look-see.
Then theres:
99' Mustang GT 4.6L
88' F-250 Heavyduty 4x4 351/c6
95' Mercury Cougar 4.6L V-8
80' E-350 300/6 with a
3 spd column shifter. Weighs around 7,000lbs w. 65mph top speed, who wants to race me!
Cargo Master
Joined: Sep 2001
Posts: 3,135
Likes: 0
From: Canada
300 needs more stroke
why not just bore it out to around 309, headers, glasspack exhaust, 4 bbl carb, ry to raise compression if possible, hi-pro cam, better erar end gearing, to around maynbe 3.8ish?
you can have all the horse power in the world, but can your rear end take it?
you can have all the horse power in the world, but can your rear end take it?
