Is that the motor you were referring to? Look on page 2 and you'll see that the pistons Coast is using still have wrist pins located very close to the bottom land for the oil ring. That makes for a weak spot which under high compression could be serious trouble.
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Sometimes I think that government fits that old-fashioned definition of a baby: An alimentary canal with an appetite at one end and no sense of responsibility at the other.
- Ronald Reagan
That's the site,if you scroll down in "articles you'll see "ford 347ci".That's the one I was referring to when I said paragraph 4.I see what you mean about being real close to oil ring groove.You think that's too close to make a dependable n/a street motor?
Well, when you have pre-detonation, the ring lands take an absolute beating. Looking at that picture of the pistons and judging the proximity of the wrist pins to the bottom of the oil ring land, I would be hesitant to run those pistons with an uber-high compression ratio. It'll stay together for a while, most likely better than 347's of 5 years ago. I don't think they'll last 100,000+ miles though.
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Sometimes I think that government fits that old-fashioned definition of a baby: An alimentary canal with an appetite at one end and no sense of responsibility at the other.
- Ronald Reagan
If you want to build a more dependable stroker then go with the 331! You will get more mileage out of it and it will use less oil than the 347 (wrist pin is lower in 331).
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Red 1994 GT (Cobra motor)Pro-m 77mm maf, BBK 70mm Tb. MSD dist. and coil ,Mac headers ,Ford Racing lowering springs, BBK fuel pump and adjustable regulator, Crane 1.6 RR, F303 cam and Edelbrock Performer intake w/ 24# injectors,Auburn Posi-unit W/ 373 gears,offroad H-pipe, Flowmaster cat-back
Sorta leaning that way now.Since it appears my bottom end is OK now that I'm down to it,not sure I'll stroke at all-But if I do I don't see a reason to go bigger than the 331 for a good,long lasting street motor with plenty of giddyup
That's how the 331 came about. People loved the power of the 347 but wanted something more durable. Some builders messed around with different strokes and came up with the 331.
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Sometimes I think that government fits that old-fashioned definition of a baby: An alimentary canal with an appetite at one end and no sense of responsibility at the other.
- Ronald Reagan
I checked out the CHP site and they did change the location of the wristpin. Maybe that new setup will work better than the old style. ??
I guess you have to step back and look at the ultimate goal of your ride either being more street or more strip. Either way both of them will make for some serious power if topped off w/ the right accessories ie:heads,intake.
My main concern is should I use the fuel injection or go carburated cause I know after I get all of this work done a serious amount of coin will need to be spent on a tune and dyno session plus all the suspension parts that I need to upgrade.
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Red 1994 GT (Cobra motor)Pro-m 77mm maf, BBK 70mm Tb. MSD dist. and coil ,Mac headers ,Ford Racing lowering springs, BBK fuel pump and adjustable regulator, Crane 1.6 RR, F303 cam and Edelbrock Performer intake w/ 24# injectors,Auburn Posi-unit W/ 373 gears,offroad H-pipe, Flowmaster cat-back
If you've got an EFI setup already, stick with it. It would be every bit as expensive to switch back over to a carb to feed that monster.
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Sometimes I think that government fits that old-fashioned definition of a baby: An alimentary canal with an appetite at one end and no sense of responsibility at the other.
- Ronald Reagan
Yea, I know what your saying , I just get a little discouraged sometimes with the fuel injection and just want to rip it all off and throw my other intake and carb on (Holley street dom. intake and speed demon 750cfm carb) and sell off all the other stuff!! I figured all I would have to do is buy a Mallory 3-port regulator (7-45psi) and use the computer for the ignition. But who knows I guess i'll go ahead and build the 331 and throw the fuel inj. on and use my tuner & hope 4 the best and if I start having too many probs the carbs going on.
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Red 1994 GT (Cobra motor)Pro-m 77mm maf, BBK 70mm Tb. MSD dist. and coil ,Mac headers ,Ford Racing lowering springs, BBK fuel pump and adjustable regulator, Crane 1.6 RR, F303 cam and Edelbrock Performer intake w/ 24# injectors,Auburn Posi-unit W/ 373 gears,offroad H-pipe, Flowmaster cat-back
I'm the other way around. I haven't messed with a carb in well over a decade, but I know EFI pretty well. I'm definitely going to be on a very steep learning curve when I get moving on this project.
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Sometimes I think that government fits that old-fashioned definition of a baby: An alimentary canal with an appetite at one end and no sense of responsibility at the other.
- Ronald Reagan
You and me both!! I've been tinkering around with my setup now trying to get the most out of it . And yes there is a bit of dust on my old carb setup too. It's been a while. What are your plans for a build?
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Red 1994 GT (Cobra motor)Pro-m 77mm maf, BBK 70mm Tb. MSD dist. and coil ,Mac headers ,Ford Racing lowering springs, BBK fuel pump and adjustable regulator, Crane 1.6 RR, F303 cam and Edelbrock Performer intake w/ 24# injectors,Auburn Posi-unit W/ 373 gears,offroad H-pipe, Flowmaster cat-back
I'm thinkin a 331 with AFR 185''s and a cam just short of a full race cam. I found a really nice forged Scat bottom end at Summit with forged crank, rods and forged aluminum pistons, moly coated rings and Federal Mogul bearings. I haven't decided on a intake manifold yet, but I'm thinking the Performer RPM dual plane will work well. I've got to get a double hump tranny crossmember so I can do a full dual exhaust to work with some Hedman headers I found on Summit also.
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Sometimes I think that government fits that old-fashioned definition of a baby: An alimentary canal with an appetite at one end and no sense of responsibility at the other.
- Ronald Reagan
My set up is close. Not to be nosy but around how much lift are you thinking and how much lift will the out of box AFR's take? I here alot of people using the Comp Cams Extreme Energy cams .565/.574" or the .555/.565". thats what I was thinking agout using.
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Red 1994 GT (Cobra motor)Pro-m 77mm maf, BBK 70mm Tb. MSD dist. and coil ,Mac headers ,Ford Racing lowering springs, BBK fuel pump and adjustable regulator, Crane 1.6 RR, F303 cam and Edelbrock Performer intake w/ 24# injectors,Auburn Posi-unit W/ 373 gears,offroad H-pipe, Flowmaster cat-back
I think the AFR's right out of the box will handle about .650" lift without needing new springs. I haven't even began spec'ing cams yet. I have a LONG way to go before i'm ready to do that so I haven't even thought too much about it. I've heard a lot of people talking good stuff about the Comp XE's. I just found out yesterday that Advance Auto carries Lunati cam and lifter sets. I have a cousin that works for Advance, so I may go with a Lunati cam just to save some cash. This whole project is getting really expensive.
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Sometimes I think that government fits that old-fashioned definition of a baby: An alimentary canal with an appetite at one end and no sense of responsibility at the other.
- Ronald Reagan
[quote=BlueStreak03]I'm thinkin a 331 with AFR 185''s and a cam just short of a full race cam.
a few posts earlier
"AFR 185's might be a bit large on the intake side for a 331 down low, but they'll really set some power loose upstairs."
I assume you are comparing a street motor to a racing motor?To a newbie like me this is somewhat confusing,to hear the same person tell someone not good but that's what I think I'm gonna do(just clarifying,not being a smart___,sorry if it sounds that way).
