Engine blocks

GreenMustang00 · March 28th, 2011, 09:36 PM

Question of the night... Between the supercoupe 3.8, stang 3.8, or f150 4.2', which block is the strongest.. I heard the super coupe block will hold the most power since it was supercharged out of the factory so thus being made of a different material..

Any truth behind this? I will have all 3 blocks in hand so that is why I ask

walt1120 · March 28th, 2011, 10:21 PM

Originally Posted by GreenMustang00

Question of the night... Between the supercoupe 3.8, stang 3.8, or f150 4.2', which block is the strongest.. I heard the super coupe block will hold the most power since it was supercharged out of the factory so thus being made of a different material..

Any truth behind this? I will have all 3 blocks in hand so that is why I ask

the block itself (not including internals) the 01+ 3.8/4.2 block is the strongest.

obviously the supercoupe came with the strongest internals, your not going to make enough power to break any 3.8 block anyway. the supercoupe block however came with upgraded (larger) coolant holes (im pretty sure) in the block.

the internals are what you need to be worried about. the 94+ supercoupe had a forged crank and rods but still hyperpuetic pistons. the pistons were a little stronger than regular 3.8 pistons.

so as far as power in concerned the stock supercoupe motor can handle the most hp stock out of the 3. but any 3.8 block with aftermarket fully forged internals is going to be way stronger. i think a stock supercoupe is good until 500hp maybe? dont remember, maybe kyle can touch on this because he knows alot more about it than i do.

southfour! · March 29th, 2011, 12:58 AM

i have heard a few people say that the 01+ mustang block is the best but ive never seen any real proof.

Rich J · March 29th, 2011, 02:57 AM

Originally Posted by southfour

i have heard a few people say that the 01+ mustang block is the best but ive never seen any real proof.

That's because no one has cracked one yet.

Tang Stang · March 29th, 2011, 09:37 AM

Originally Posted by walt1120

the 94+ supercoupe had a forged crank and rods but still hyperpuetic pistons. the pistons were a little stronger than regular 3.8 pistons.

Actually, other than the Duracast cranks that showed up in some '89 and early '90 models, all SC engines had forged crankshafts and rods, with hypereutectic pistons (it wasn't just the 94-95's). The 94-95's had slightly longer rods with shorter pistons, but they were all still forged rods/hypereutectic pistons.

GreenMustang00 · March 29th, 2011, 09:38 AM

Originally Posted by Tang Stang

Actually, other than the Duracast cranks that showed up in some '89 and early '90 models, all SC engines had forged crankshafts and rods, with hypereutectic pistons (it wasn't just the 94-95's). The 94-95's had slightly longer rods with shorter pistons, but they were all still forged rods/hypereutectic pistons.

Looks like it has a Duracast crank lol

oh well
more reason to run a 4.2 bottom end

Tang Stang · March 29th, 2011, 09:54 AM

If you're only basing that off of the year of the block, I'd recommend checking it out first. There really weren't that many Duracast crank'd SC engines produced. I've had 9 SC's/XR7's (and easily over 15 SC engines), and only one of my 89's turned out to have a Duracast crank.

mustangmike! · March 29th, 2011, 03:34 PM

There was fully forged 4.2 for 2k for sell near ESG at some point. Or atleast he found it.

southfour! · March 30th, 2011, 01:22 AM

Originally Posted by mustangmike!

There was fully forged 4.2 for 2k for sell near ESG at some point. Or atleast he found it.

ESG also had his 4.3 for sale for a decent price.

here is the link to the one you might be talking about

4.3 long rod stroker kit from ssm 8.7:1 Bottom end

that one is in cali though, and i dont know if its still available.

GreenMustang00 · March 30th, 2011, 01:29 AM

Originally Posted by Tang Stang

If you're only basing that off of the year of the block, I'd recommend checking it out first. There really weren't that many Duracast crank'd SC engines produced. I've had 9 SC's/XR7's (and easily over 15 SC engines), and only one of my 89's turned out to have a Duracast crank.

Any easy way to figure it out by a number on the block? Any other way... I want to find out asap and its on a tire right now so it would be a tad difficult to get it off

ESG-642T · March 30th, 2011, 06:21 AM

Originally Posted by mustangmike!

There was fully forged 4.2 for 2k for sell near ESG at some point. Or atleast he found it.

Originally Posted by southfour

ESG also had his 4.3 for sale for a decent price.

here is the link to the one you might be talking about

4.3 long rod stroker kit from ssm 8.7:1 Bottom end

that one is in cali though, and i dont know if its still available.

I have both lol!

Rich J · March 30th, 2011, 07:16 AM

You would....

Tang Stang · March 30th, 2011, 09:09 AM

Originally Posted by GreenMustang00

Any easy way to figure it out by a number on the block? Any other way... I want to find out asap and its on a tire right now so it would be a tad difficult to get it off

It's pretty easy to tell by looking at the crank itself. I've heard that, if it still has the original crank pulley on it, the part number should end in -CA if it's a Duracast and -CB if it's a forged crank, but I can't confirm that.

GreenMustang00 · March 30th, 2011, 10:16 PM

Ca

Tang Stang · March 30th, 2011, 10:29 PM

I'd still take a look at the crank before condemning it.

GreenMustang00 · March 30th, 2011, 10:38 PM

Will do.. Anything would be a plus considering I didn't buy it for the short block.
Motor still seems pretty clean for a salvaged motor

Edit: all these blocks have same bolt patterns for the heads right? I don't see why not but just figured I would make sure

Tang Stang · March 31st, 2011, 09:12 AM

Originally Posted by GreenMustang00

Edit: all these blocks have same bolt patterns for the heads right? I don't see why not but just figured I would make sure

Yep.

March 28th, 2011, 09:36 PM	#1
GreenMustang00 1 Wheel Peel 2000 Mustang 393w 2001 Mustang GT Vert Join Date: Mar 2010 Location: Wisconsin Posts: 3,583 iTrader: 4 reviews	Engine blocks Question of the night... Between the supercoupe 3.8, stang 3.8, or f150 4.2', which block is the strongest.. I heard the super coupe block will hold the most power since it was supercharged out of the factory so thus being made of a different material.. Any truth behind this? I will have all 3 blocks in hand so that is why I ask __________________ 2000 393w Swapped Vert 2001 GT Vert 2002 Six Banger

March 29th, 2011, 12:58 AM	#3
southfour! Not Banned 2000 Mustang V6 2000 Silverado 1500 Join Date: Jan 2010 Location: Calgary, Canada Posts: 4,552 iTrader: 3 reviews	i have heard a few people say that the 01+ mustang block is the best but ive never seen any real proof. __________________ H/C/I V6 BMC Member: 12521 Cam Video My Build Thread

March 29th, 2011, 09:54 AM	#7
Tang Stang Hardcore Enthusiast 2004 Mustang GT Join Date: Sep 2010 Location: Imperial, MO Posts: 1,961 iTrader: 2 reviews	If you're only basing that off of the year of the block, I'd recommend checking it out first. There really weren't that many Duracast crank'd SC engines produced. I've had 9 SC's/XR7's (and easily over 15 SC engines), and only one of my 89's turned out to have a Duracast crank. __________________ Rod @ AzzKicker Cars 2004 Ford Mustang GT-The Driver-BBK CAI, PP TB & Inlet, Steeda UD's, SLP LM1, & 3.73's. 1990 Mercury Cougar XR7-The Meth Addict-5.0L DOHC Stroker w/2.1L KB SC. 1995 Ford F150-Mud Toy-5.0L, 4x4, 33's, & Warn 8274 Winch

March 29th, 2011, 03:34 PM	#8
mustangmike! I Post Entirely Way Too Much 2004,1994,1967 14.37 @ 96 Join Date: Aug 2008 Location: Texas Posts: 6,018 iTrader: 1 reviews	There was fully forged 4.2 for 2k for sell near ESG at some point. Or atleast he found it. __________________ 227whp N/A V6 Now w/ 8th Mile 8s ! How To Jmod Your Late Model 4R70W

March 30th, 2011, 07:16 AM	#12
Rich J I'm doing it wrong 04 Grand Cherokee Join Date: Mar 2010 Location: South Eastern, Mass Posts: 5,211 iTrader: 0 reviews	You would.... __________________ Formerly known as Demon_54 "I feel the same way about disco as I do about herpes." - Hunter S. Thompson

March 30th, 2011, 10:16 PM	#14
GreenMustang00 1 Wheel Peel 2000 Mustang 393w 2001 Mustang GT Vert Join Date: Mar 2010 Location: Wisconsin Posts: 3,583 iTrader: 4 reviews	Ca __________________ 2000 393w Swapped Vert 2001 GT Vert 2002 Six Banger

March 30th, 2011, 10:29 PM	#15
Tang Stang Hardcore Enthusiast 2004 Mustang GT Join Date: Sep 2010 Location: Imperial, MO Posts: 1,961 iTrader: 2 reviews	I'd still take a look at the crank before condemning it. __________________ Rod @ AzzKicker Cars 2004 Ford Mustang GT-The Driver-BBK CAI, PP TB & Inlet, Steeda UD's, SLP LM1, & 3.73's. 1990 Mercury Cougar XR7-The Meth Addict-5.0L DOHC Stroker w/2.1L KB SC. 1995 Ford F150-Mud Toy-5.0L, 4x4, 33's, & Warn 8274 Winch

March 30th, 2011, 10:38 PM	#16
GreenMustang00 1 Wheel Peel 2000 Mustang 393w 2001 Mustang GT Vert Join Date: Mar 2010 Location: Wisconsin Posts: 3,583 iTrader: 4 reviews	Will do.. Anything would be a plus considering I didn't buy it for the short block. Motor still seems pretty clean for a salvaged motor Edit: all these blocks have same bolt patterns for the heads right? I don't see why not but just figured I would make sure __________________ 2000 393w Swapped Vert 2001 GT Vert 2002 Six Banger Last edited by GreenMustang00; March 30th, 2011 at 11:33 PM.

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