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347 stroker???

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Old Dec 13, 2011 | 04:44 PM
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347 stroker???

So I have a 302 EFI in my 90 F150. I've been reading on building a stroker using that same engine. Engine's not worn out, just truck is real slow. Not a problem but kinda scary merging onto the highway. But anyway, what is involved and can it be done for cheap (I have college to pay for!) I've heard you upgrade cam, heads but am still confused
 
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Old Dec 13, 2011 | 06:45 PM
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Before you start tossing money into an engine rebuild take a step back to subjectively figure out where you currently are. When was the last time you did a tune-up on the truck? What size tires? Any other mods?

Plenty of lower dollar modifications you can do before going with a stroker that are easy on the budget and will yield reasonable returns.
 
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Old Dec 13, 2011 | 07:23 PM
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Originally Posted by rla2005
Before you start tossing money into an engine rebuild take a step back to subjectively figure out where you currently are. When was the last time you did a tune-up on the truck? What size tires? Any other mods?

Plenty of lower dollar modifications you can do before going with a stroker that are easy on the budget and will yield reasonable returns.
Tune up like 2000 miles ago. I haven't changed the fuel filter but will on a warm weekend. 32" BFG AT tires. Flowmaster muffler and dual pipes. Otherwise stock except a sway bar. What other mods are cheaper? I know a K+N, headers off the top of my head
 
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Old Dec 13, 2011 | 07:40 PM
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Instead of building a 347 stroker you might consider swapping in a 351, as is.
 
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Old Dec 13, 2011 | 07:47 PM
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Forget the K&N, it is worthless on an otherwise stock engine. What kind of plugs, wires, cap and rotor did you use? Those 32" tires are the most likely culprit of robbing you of power and mileage.

Many here on these forums and others have had great success bumping the time up to the 12-16 BTDC range and opening up the plug gap to .055" range. AKA Sixlitre tunep. You need to figure out what the gearing is on your ride. Anything less than 3.55 is an absolute minimum BEFORE swapping on larger tires.

An also well known bottle neck is the factory y-pipe and converters. Swapping those out for a high-flow version is the best way to unleash some power after doing the timing bump and tune-up. For added performance long tube headers are the way to go along with a custom exhaust. For me I am happy with a Bassani 3" y-pipe, 3" converter and single 3" exhaust out to the tailpipe.
 
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Old Dec 13, 2011 | 08:23 PM
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Originally Posted by rla2005
Forget the K&N, it is worthless on an otherwise stock engine. What kind of plugs, wires, cap and rotor did you use? Those 32" tires are the most likely culprit of robbing you of power and mileage.

Many here on these forums and others have had great success bumping the time up to the 12-16 BTDC range and opening up the plug gap to .055" range. AKA Sixlitre tunep. You need to figure out what the gearing is on your ride. Anything less than 3.55 is an absolute minimum BEFORE swapping on larger tires.

An also well known bottle neck is the factory y-pipe and converters. Swapping those out for a high-flow version is the best way to unleash some power after doing the timing bump and tune-up. For added performance long tube headers are the way to go along with a custom exhaust. For me I am happy with a Bassani 3" y-pipe, 3" converter and single 3" exhaust out to the tailpipe.
Autolite wires. Shop did the plugs during inspection so idk the brand. I have 4.10 gears in a new Jasper rear end. I should swap out the cat and do new exhaust because it's getting rusty. Cap/ rotor is motocraft.
 
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Old Dec 13, 2011 | 08:54 PM
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Gears sound good with the tires you have. Definitely look at getting rid of the factory converter and y-pipe or go with long tubes and custom exhaust. Still sounds like something is amiss here. A timing bump may be in your immediate future.
 
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