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5.0 and 5.0?????????

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Old Nov 9, 2002 | 07:26 PM
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From: Granby, Ma US
Car: 89 WS6 Formula
Engine: 305 TPI w/ some mods done
Transmission: Modified THM700R4
5.0 and 5.0?????????

Ok i know that i am prolly going to get alot of responces and flames on this one but this is my theory and my opinion...i could be wrong and please correct me if i am.
The ford 302 is 302cu inches. And yet says "5.0" on the older style stangs. Why? Ford, as far as i know, does not make a 305 which measures exactly 5.0 liters.....so why did they put 5.0 on the side of the stangs. The newer style stangs come with the same motor(new technology) but still a 302...and yet say "4.6" on the side? Was this a mistake by ford? Or is it just the measuring and terminology that i am getting wrong. GM from what i understand makes the 305 which measures "5.0" liters...so how can two motors but different companies have the same thing??? I have always wanted to know this. I get so frustrated when i line up with a older style stang and see "5.0" on his car....and also see "5.0" on my tear drop hood.
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Old Nov 9, 2002 | 07:58 PM
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Car: 99 Formula
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B/C Ford rounds up and Chevy rounds down from what I've heard.

Besides, why call the block a 4.99, 302/61= 4.95

Oh, and Stangs don't use 302s anymore, I believe '95 was the last yr for them.
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Old Nov 9, 2002 | 08:03 PM
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From: Anderson, IN
Car: 86 Cutlass
Engine: 350
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302 cubes is close enough to 5 liters to call it a 5.0. Besides, its just sounds cooler than saying 4.9. The new stangs run the 4.6 Modular engines, which is a completely different design. However, Ford is bringing out a new 5.0 crate engine of the Mod design, which will probably make its way into the production stangs in the next couple years.
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Old Nov 9, 2002 | 08:53 PM
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From: Granby, Ma US
Car: 89 WS6 Formula
Engine: 305 TPI w/ some mods done
Transmission: Modified THM700R4
Thanks for the replies. Just couldnt seem to figure it all out. I wonder if i do some little mods but nothing serious if ill be able to give them a decent run most of the time. I will admit..i have beaten several.....but also have lost to a few. But i think from the way they sounded that they were heavily modified.
Has anyone else heard of the new pontiac GTO thats coming out in 2004? Any idea what its running for an engine??
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Old Nov 9, 2002 | 09:01 PM
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Has anyone else heard of the new pontiac GTO thats coming out in 2004? Any idea what its running for an engine??
That's going to be one sweet a$$ ride! It's going to have a specially tuned LS1 350. Somewhere around 300 horses I believe.

Lee

Last edited by 337; Nov 9, 2002 at 09:04 PM.
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Old Nov 9, 2002 | 11:07 PM
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From: Third-Gen Land
The exact number for calculations is 61.024
302=4.948
305=4.998
307=5.030

So the 307 is the only "true" 5.0, but that engine sucks anyways.

Last edited by Jasper89ROC; Nov 10, 2002 at 12:11 AM.
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Old Nov 10, 2002 | 12:21 AM
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Ford already had a 4.9 engine when they made the 302. The 4.9 liter ford v6 is a straight 6. so the 302 got to be the 5.0. a 305 is a tad closer to a 5.0 than the 302 but who cares the 302 is a better motor than a 305. also the new moduler (or whatever its called) 4.6 is a 281ci.
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Old Nov 10, 2002 | 12:31 AM
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From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
The new dodge hemi is a 5.7L
Chev 350 is a 5.7L
Ford 351 is a 5.8L

Even though ford and chev have 5.0L engines, they are so totally different in bore and stroke that the engines are in no way equal. The chev 302 is closer in design to the ford 302 than a chev 305 is.

The difference between CID and Liters is never exact. Even motorcycles are rounded. A 750 cc bike may only be 698cc.
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Old Nov 10, 2002 | 12:37 AM
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From: phila pa
yea the 305s are a 3.74 inch bore with a 3.48 stroke........... the ford 302 and the chevy 302 are a 3 inch stroke and a 4 inch bore............. the ls1 is also not really a 350..... its a 346..... with a 3.9 bore and a 3.62 stroke
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Old Nov 10, 2002 | 12:41 AM
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hmm the ford 5.0 is definately a better engine than the chevy 5.0 and i know im gonna get falmed for this but oh well. look at it like this


if you a have a hole the is 3.85 inches around yu can only get so much valve surface area into it. whereas a 4.o inch hole is larger and will accomodate more valve surface are

the chevy 302 307 have 4 inch bores. this alows for a larger valve and less shourding ofe intake and exhuast valves allowing for greater airflow potential.
the 305 has a 3.85 inch bore that shrouds the vavles and can only run 1.90 inch intake and 1.50 exhuast max with out clearnace issues.

the ford 302 is a 4.oo bore motor and share the advantages of the 302 307 chevy motors.

so if i were gonna build a small cube motor id want the biggest bore and longest stroke avaible. now if these engines all had 4valves per cylinder the bore shrouding issue could be neagted by using more valves and incresint eh over all valve area. your not so limited by diamtere in this fashion. it al sort of goofy

but 2 engines built the same one ford 5.0 one chevy 305 the ford will outpower it hands down everytime do to improved airlfow from teh cylinder head around the valve becuase yet again teh valves arent going to be shrouded.

just my to cents i will shut up and go away now.
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Old Nov 10, 2002 | 12:45 AM
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From: phila pa
the 305 isnt a 3.85 bore...... its 3.74 and the 307 has a 3.9 bore
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Old Nov 10, 2002 | 02:37 AM
  #12  
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Engine: LH0 3.1L
Originally posted by 337
That's going to be one sweet a$$ ride! It's going to have a specially tuned LS1 350. Somewhere around 300 horses I believe.

Lee
Pet peeve #23,543: The LS1 is NOT a 350.
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Old Nov 10, 2002 | 05:02 AM
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From: In a mint Third Gen!
Car: Red 87 IROC-Z28 T-Top
Engine: 5.7 Tuned Port Injection
Transmission: 700R4 Auto
Axle/Gears: BW 9-Bolt 3.27
Its not that its better, its just that it makes more power.
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Old Nov 10, 2002 | 09:34 AM
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Car: 99 Formula
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Originally posted by CaliCamaroRS
Pet peeve #23,543: The LS1 is NOT a 350.
A 346 or so right?
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Old Nov 10, 2002 | 12:32 PM
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From: phila pa
Originally posted by Marshall89ws6
the ls1 is also not really a 350..... its a 346..... with a 3.9 bore and a 3.62 stroke
lol
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Old Nov 10, 2002 | 12:40 PM
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Car: 99 Formula
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Transmission: T56
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Originally posted by Marshall89ws6
lol
what was funny about that, it's not a 350, i'm not sure about the bore and stroke thing though.
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Old Nov 10, 2002 | 02:10 PM
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Re: 5.0 and 5.0?????????

Originally posted by TorchRay
...and yet say "4.6" on the side? Was this a mistake by ford? ...
Yes, the Romeo (modular) engine was a BIG mistake by Ford. I saw those prototypes back in 1993, when Ford was starting development and tried to get it's supplier lines in place. My company was supposed to quote the tie bolts (long bolts that hold the cylinder sleeves in place) but didn't even want to touch it. The determination was that the bolt would be adequate, but the design was so poor that likely failures of cylinder sealing would ocur and we didn't want to be associated with anything in that area. What a Tinker-Toy!?

Unfortunately for Ford, they are now stuck with that engine, and won't be backing away any time soon. The older Windsors were probably a superior base for building power, and guys with pre-'95 Fords are probably feeling pretty lucky.
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Old Nov 10, 2002 | 03:04 PM
  #18  
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From: phila pa
Originally posted by Mark A Shields
what was funny about that, it's not a 350, i'm not sure about the bore and stroke thing though.
o i thought it was funny tthat u said .... what is it , a 346 or so ?...... when i already had it up...... and yea the bore and stroke are correct i was talking to matt walsh from engine factory.com about it, they work on em all the time...... if u need an incredible crate motor.... go there... they are kick ***.
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Old Nov 10, 2002 | 04:44 PM
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From: MD
Re: Re: 5.0 and 5.0?????????

Originally posted by Vader
Yes, the Romeo (modular) engine was a BIG mistake by Ford.
Really? Maybe in stock form the SOHC may not be the best performers, but they are pretty damn reliable. And about the 4.6/5.4 DOHC (still mod motors) not being performers... NMRA already has several in the 8's! Not to mention they are the smoothest idling and running engine ever produced...
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Old Nov 10, 2002 | 07:26 PM
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Re: Re: Re: 5.0 and 5.0?????????

Originally posted by Marc 85Z28
...Not to mention they are the smoothest idling and running engine ever produced...
I guess you've never seen one of these:



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Old Nov 10, 2002 | 08:46 PM
  #21  
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From: Cathlamet, Washington
Car: 87 Formula
Engine: 327
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Is that a sleeve-valve engine Vader? I've heard they were extremely smooth. I see it says packard, I've been told that the test to see if a packard was in tune was to set a completely full glass of water on the head and rev the engine. If any water spilled you still had work to do!
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Old Nov 10, 2002 | 10:11 PM
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Originally posted by TorchRay

Has anyone else heard of the new pontiac GTO thats coming out in 2004? Any idea what its running for an engine??
The LS1 in the 2002 F-bodies produced I believe 320 hp... The new ones going in the Z06 are looking at closer to 400?

I am not thrilled by the new GTO, It looks like a giant *** hole, even if it is fast. And to add insult to ugliness, it is just a Austrailian production car switched to left drive and with an LS1... All in all, I know enough about it to be disgusted with its use of the 'GTO' name...
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Old Nov 10, 2002 | 10:34 PM
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My dad almost bought a 97 4.6 but turned it down for a 95 GT with the 5.0 I think i talked him into that one. Plus he got a killer deal on a 95 GT with 60k...5k...damn good deal. auto tho

that mustang GT wont touch my camaro tho damn camaro is so much faster now

:hail: the 5.7

Last edited by TBI305Camaro; Nov 10, 2002 at 10:42 PM.
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Old Nov 11, 2002 | 03:43 PM
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From: MD
Re: Re: Re: Re: 5.0 and 5.0?????????

Originally posted by Vader
I guess you've never seen one of these:



Nope, I've never seen that before, I think. What is it? I still think that the 4.6's idle is the smoothest engine I've ever driven. I may have said ever produced, but I wasn't implying super exotic engines... I like to speak in real world terms.

And what ever happened to those "cylinder sealing problems" you were forcasting back then?
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