Stroking and poking a 300
Thread Starter
|
New User
Joined: Jun 2002
Posts: 11
Likes: 0
Stroking and poking a 300
I own an 85 F-150 with a 300 6 and four wheel drive and i was wanting to stroke it and boring. Does any one know the max that these stock blocks can handle?
Shane Armfield
85 F-150
72 Mustang
Shane Armfield
85 F-150
72 Mustang
Junior User
Joined: Jan 2002
Posts: 50
Likes: 0
Stroking and poking a 300
The I6-300 comes factory stock with a 4" stroke,
which gives it quite a good amount of torque. I
believe that oversize pistons are available in .030
and .060 over. As I understand it, the cylinder
head can be machined down by .090 as well.
which gives it quite a good amount of torque. I
believe that oversize pistons are available in .030
and .060 over. As I understand it, the cylinder
head can be machined down by .090 as well.
Elder User
Joined: Apr 2002
Posts: 530
Likes: 0
Stroking and poking a 300
>The I6-300 comes factory stock with a 4" stroke,
>which gives it quite a good amount of torque. I
>believe that oversize pistons are available in .030
>and .060 over. As I understand it, the cylinder
>head can be machined down by .090 as well.
Can someone explain to me what "stroking" means, and what good it does to machine down the head and shave them and stuff?
Thanks
>which gives it quite a good amount of torque. I
>believe that oversize pistons are available in .030
>and .060 over. As I understand it, the cylinder
>head can be machined down by .090 as well.
Can someone explain to me what "stroking" means, and what good it does to machine down the head and shave them and stuff?
Thanks
Junior User
Joined: Jan 2002
Posts: 50
Likes: 0
Stroking and poking a 300
>Can someone explain to me what "stroking" means,
"stroking" an engine involves changing the crankshaft
and piston rods in order to get a larger stroke from
the pistons. More stroke typically yields more torque.
>and what good it does to machine down the head and
>shave them and stuff?
Machining, or "milling" the cylinder head results in
less volume in the combustion chamber. As long as
there is enough valve clearance in the chamber,
altering it so that there is less volume results
in more compression, and likewise more power output
from your engine.
"stroking" an engine involves changing the crankshaft
and piston rods in order to get a larger stroke from
the pistons. More stroke typically yields more torque.
>and what good it does to machine down the head and
>shave them and stuff?
Machining, or "milling" the cylinder head results in
less volume in the combustion chamber. As long as
there is enough valve clearance in the chamber,
altering it so that there is less volume results
in more compression, and likewise more power output
from your engine.
Elder User
Joined: May 2002
Posts: 627
Likes: 0
From: Claremore, Ok 74017
Stroking and poking a 300
the crank stroke is the distance of the center on the crank to the center of the rod journal. By stroking it you put a longer distance from center to center which gives your rod more leverage in turning the crank. more leverage computes to equal more torque since its easier to turn.
Thread Starter
|
New User
Joined: Jun 2002
Posts: 11
Likes: 0
Trending Topics
Post Fiend
Joined: Nov 2001
Posts: 5,871
Likes: 0
From: Coutts Canada
Stroking and poking a 300
Why don't you raise the compressioon to something like 13:1 and build it to run on propane? An engine builder says the 300 I-6 responds very, very well to this.
82' Flareside: zoom zoom doesn't even begin to describe it
2/4 Drop
Soon to have 325hp 351 Clevo
(maybe more,in a 3600lb truck)
Backed by a C6 with a 2000 rpm stall and a 3.50 9 incher
American Racing AR-23 (series 23) wheels
Upgraded interior
Soon to install: Sony Xplod stereo
82' Flareside: zoom zoom doesn't even begin to describe it
2/4 Drop
Soon to have 325hp 351 Clevo
(maybe more,in a 3600lb truck)
Backed by a C6 with a 2000 rpm stall and a 3.50 9 incher
American Racing AR-23 (series 23) wheels
Upgraded interior
Soon to install: Sony Xplod stereo
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
Elder User
Joined: May 2002
Posts: 627
Likes: 0
From: Claremore, Ok 74017
Stroking and poking a 300
I have never seen a stroker kit. But some of the best things you can do is to maybe bore it, raise compression, put a hotter camshaft, good 4 barrel intake and a high flowing header with a 3 inch exhaust out the back.
Elder User
Joined: May 2002
Posts: 627
Likes: 0
From: Claremore, Ok 74017
Stroking and poking a 300
Crane makes a Cam with 260/272 duration and 458/487 lift designed for 1200-5000 rpm at $110. Dynomax has a good header for about $130. All from Jegs. JcWhitney sells an Offenhauser 4-barrel intake manifold for $200. Top it off with an Edelbrock 500 or 600cfm carb and I think you will have a stout little six. If you do some research though I know you can find higher compression pistons. Seen them before just can't remeber where.
Senior User
Joined: Jul 2002
Posts: 160
Likes: 0
From: East Freetown, MA
Stroking and poking a 300
I ahve what u are looking for my man.. A realyl strong inline 6, pushing about 300 Hp, very nice comp cam, custom chevy valves, I have about 10,000 on it let me know if u are interested!
Later
Chris
Later
Chris
Thread
Thread Starter
Forum
Replies
Last Post
cooploops
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
11
Jul 17, 2008 01:47 PM
Mikestrucks
1973 - 1979 F-100 & Larger F-Series Trucks
2
Oct 26, 2007 11:41 AM
Shanemh
1987 - 1996 F150 & Larger F-Series Trucks
4
Jan 15, 2007 08:40 PM