4.2 Crank

Codeman · February 10th, 2010, 01:41 PM

Ok, so I have been looking at different cranks and it seems all of the 4.2 cranks are not forged? They say cast, not forged? Also I plan on building a car for nitrous. Would a crank from a 4.2 pickup work? I mean be tough enough to handle the instant torque?

9986paulk · February 10th, 2010, 02:30 PM

those are the ones we use for strokers. like ssms has prepped and balanced ones.

stangcharger · February 10th, 2010, 03:34 PM

Regular 4.2L crank from F-150 is fine for anything. I think either J or Gary was running one at 660+rwhp without any issues. Eventually maybe crank walk, but that isn't the toughness of the crank.

Forged 4.2L crank isn't worth it IMO. No one has broken a cast 4.2L crank to date that I know of.

Codeman · February 10th, 2010, 10:07 PM

ok, thanks. i was curious. because i would think it would be easier to find a cheap 4.2 pickup crank then buying one from ssms. i know i will have to go there for the rods and pistons but still every little penny saved adds up.

stangcharger · February 10th, 2010, 10:47 PM

Originally Posted by Codeman

ok, thanks. i was curious. because i would think it would be easier to find a cheap 4.2 pickup crank then buying one from ssms. i know i will have to go there for the rods and pistons but still every little penny saved adds up.

completely agree.

24KStang · February 11th, 2010, 11:48 PM

I am new to modifying..Can I grab a crank from a junk yard?

ESG-642T · February 12th, 2010, 01:12 AM

Originally Posted by Codeman

ok, thanks. i was curious. because i would think it would be easier to find a cheap 4.2 pickup crank then buying one from ssms. i know i will have to go there for the rods and pistons but still every little penny saved adds up.

SSMS crank or New 4.2L crank from ford are the same thing, and going to cost you the same money.

If you want something 100% reliable then I don't advise grabbing a crank out of a junk yard vehicle unless you plan on having it prep'd afterward.

fast/cheap/reliable

You sound like your on the fast/cheap route, thats the one that leaves you calling triple A.

Codeman · February 12th, 2010, 12:10 PM

not really, but if you know people at machine shops and engine building shops so you can get good deals on if it needs to be undersized and balanced it pays to buy a used crank.

Flex · February 14th, 2010, 04:25 PM

Originally Posted by Codeman

ok, thanks. i was curious. because i would think it would be easier to find a cheap 4.2 pickup crank then buying one from ssms. i know i will have to go there for the rods and pistons but still every little penny saved adds up.

No you don't. David Dalke sells Wiseco pistons for half of what SSM charges. There are other's out there cheaper as well.

He also sells h-beam rods for less. Don't just assume that the only place to get parts from is Super(high priced) Six Motorsports.

Wiseco OE replacement FORGED pistons...*UPDATED 2/20/09* - Super Coupe Club of America Forums

JTs03v6 · February 14th, 2010, 07:23 PM

You have to use the sc crank and bearings to use that setup.
I've spoke with dave and he quoted me a price around 1000 less than ssm quoted me for the price of a built short block. It included cam of my choice along with degreeing it. Really good deal. I may do this when the time is comes.

Codeman · February 14th, 2010, 08:25 PM

hey thanks!!!! a ton!!!!!!!!!!!!!!!! that is awesome, wow the money saved from modded mustangs is going up!!! yes.

Codeman · February 14th, 2010, 08:28 PM

the sc crank, is that the supercoupe crank? if so dang!

JTs03v6 · February 14th, 2010, 09:05 PM

Originally Posted by Codeman

the sc crank, is that the supercoupe crank? if so dang!

yep...and bearings

ESG-642T · February 14th, 2010, 10:22 PM

So wait, what rods do you get with the O.E. wiesco replacements?

Flex · February 14th, 2010, 10:55 PM

You can use either the stock replacement C.A.T. Power rod 5.915 or what was previously used, which was a 351 Windsor rod 5.955. Either way, the pistons are made for the rod being used.

The C.A.T. rods are about $360 while other manufactureres Winsor rods (S.C.A.T. or Eagle) are about $460.

Flex · February 14th, 2010, 10:56 PM

If you retain the 3.8 crank from an SC, it is also forged.

9986paulk · February 14th, 2010, 11:14 PM

What years SC can I get it from? I saw a 94 on clragslist for $300.

Flex · February 14th, 2010, 11:38 PM

A crank for $300 or the whole motor. All the cranks are the same.

ESG-642T · February 14th, 2010, 11:52 PM

Interesting, so what does the total price come out for a build short block using the o.e. wiesco's and scat rods?

Flex · February 15th, 2010, 01:17 AM

That depends. Are you studding the mains, using mls gaskets, new timing chain etc.? So basically, it depends on the parts.

The pistons through SCU are $75 for an SC piston and I can't see it being more for an N/A. C.A.T. b beam rods are $360. SCAT rods are $466 with 8740 bolts. David used to sell them for $300 a set. Not sure how much now.

MLS gaskets are about $80 a pop. Timing chain is about $40. The machine work depends on your shop.

February 10th, 2010, 01:41 PM	#1
Codeman Hardcore Enthusiast Join Date: Nov 2007 Location: North Dakota Posts: 2,933 iTrader: 1 reviews	4.2 Crank Ok, so I have been looking at different cranks and it seems all of the 4.2 cranks are not forged? They say cast, not forged? Also I plan on building a car for nitrous. Would a crank from a 4.2 pickup work? I mean be tough enough to handle the instant torque? __________________ UDP, CAI, True Duals, LTs, 91 Tune from TT, 3.73 gears, Tlok,Windstar upper, GT TB, Ported lower, Comp 218/226 cam, FRPP C Springs, J&M LCA, Tokico Blue shocks and struts, and J&M Full Length Subframe Connectors

February 10th, 2010, 03:34 PM	#3
stangcharger Enthusiast Join Date: Sep 2008 Location: OKC, OK Posts: 806 iTrader: 0 reviews	Regular 4.2L crank from F-150 is fine for anything. I think either J or Gary was running one at 660+rwhp without any issues. Eventually maybe crank walk, but that isn't the toughness of the crank. Forged 4.2L crank isn't worth it IMO. No one has broken a cast 4.2L crank to date that I know of. __________________ 436rwhp/378rwtq tuned by HPP www.hppmotorsports.com - www.stangcharger.com - www.rpm-mustangs.com

February 10th, 2010, 10:07 PM	#4
Codeman Hardcore Enthusiast Join Date: Nov 2007 Location: North Dakota Posts: 2,933 iTrader: 1 reviews	ok, thanks. i was curious. because i would think it would be easier to find a cheap 4.2 pickup crank then buying one from ssms. i know i will have to go there for the rods and pistons but still every little penny saved adds up. __________________ UDP, CAI, True Duals, LTs, 91 Tune from TT, 3.73 gears, Tlok,Windstar upper, GT TB, Ported lower, Comp 218/226 cam, FRPP C Springs, J&M LCA, Tokico Blue shocks and struts, and J&M Full Length Subframe Connectors

February 12th, 2010, 12:10 PM	#8
Codeman Hardcore Enthusiast Join Date: Nov 2007 Location: North Dakota Posts: 2,933 iTrader: 1 reviews	not really, but if you know people at machine shops and engine building shops so you can get good deals on if it needs to be undersized and balanced it pays to buy a used crank. __________________ UDP, CAI, True Duals, LTs, 91 Tune from TT, 3.73 gears, Tlok,Windstar upper, GT TB, Ported lower, Comp 218/226 cam, FRPP C Springs, J&M LCA, Tokico Blue shocks and struts, and J&M Full Length Subframe Connectors

February 14th, 2010, 07:23 PM	#10
JTs03v6 Hardcore Enthusiast 2003 mustang 7.48x1.56=11.67 Join Date: Sep 2009 Location: East Coast Posts: 2,318 iTrader: 0 reviews	You have to use the sc crank and bearings to use that setup. I've spoke with dave and he quoted me a price around 1000 less than ssm quoted me for the price of a built short block. It included cam of my choice along with degreeing it. Really good deal. I may do this when the time is comes. __________________ New combo: Forged SC short Block,280cfm heads, Precision 6262 turbo, cx 31x12x3 fmic http://photobucket.com/JTsTurboBuild http://youtube.com/user/JTsStang

February 10th, 2010, 02:30 PM	#2
9986paulk Hardcore Enthusiast 1999 Mustang V6 Join Date: Dec 2008 Location: Youngstown Posts: 1,226 iTrader: 3 reviews	those are the ones we use for strokers. like ssms has prepped and balanced ones.

February 11th, 2010, 11:48 PM	#6
24KStang Newbie 2k 3.8 5spd Not yet.. Join Date: Feb 2010 Location: San Diego Posts: 43 iTrader: 0 reviews	I am new to modifying..Can I grab a crank from a junk yard?

February 14th, 2010, 08:25 PM	#11
Codeman Hardcore Enthusiast Join Date: Nov 2007 Location: North Dakota Posts: 2,933 iTrader: 1 reviews	hey thanks!!!! a ton!!!!!!!!!!!!!!!! that is awesome, wow the money saved from modded mustangs is going up!!! yes. __________________ UDP, CAI, True Duals, LTs, 91 Tune from TT, 3.73 gears, Tlok,Windstar upper, GT TB, Ported lower, Comp 218/226 cam, FRPP C Springs, J&M LCA, Tokico Blue shocks and struts, and J&M Full Length Subframe Connectors

February 14th, 2010, 08:28 PM	#12
Codeman Hardcore Enthusiast Join Date: Nov 2007 Location: North Dakota Posts: 2,933 iTrader: 1 reviews	the sc crank, is that the supercoupe crank? if so dang! __________________ UDP, CAI, True Duals, LTs, 91 Tune from TT, 3.73 gears, Tlok,Windstar upper, GT TB, Ported lower, Comp 218/226 cam, FRPP C Springs, J&M LCA, Tokico Blue shocks and struts, and J&M Full Length Subframe Connectors

February 14th, 2010, 10:22 PM	#14
ESG-642T [8MINUS2] 2002, Ford, v6 Join Date: Feb 2007 Location: TEXAS Posts: 12,319 iTrader: 0 reviews	So wait, what rods do you get with the O.E. wiesco replacements? __________________ Hi, You can call me Kyle Random ESG fact: Had a prochamber on his v6 before it was popular. WTB: v6 BBK valve covers

February 14th, 2010, 10:55 PM	#15
Flex Newbie 1994 V6 Join Date: Sep 2009 Location: Edmonton, Alberta Canada Posts: 17 iTrader: 0 reviews	You can use either the stock replacement C.A.T. Power rod 5.915 or what was previously used, which was a 351 Windsor rod 5.955. Either way, the pistons are made for the rod being used. The C.A.T. rods are about $360 while other manufactureres Winsor rods (S.C.A.T. or Eagle) are about $460.

February 14th, 2010, 10:56 PM	#16
Flex Newbie 1994 V6 Join Date: Sep 2009 Location: Edmonton, Alberta Canada Posts: 17 iTrader: 0 reviews	If you retain the 3.8 crank from an SC, it is also forged.

February 14th, 2010, 11:14 PM	#17
9986paulk Hardcore Enthusiast 1999 Mustang V6 Join Date: Dec 2008 Location: Youngstown Posts: 1,226 iTrader: 3 reviews	What years SC can I get it from? I saw a 94 on clragslist for $300.

February 14th, 2010, 11:38 PM	#18
Flex Newbie 1994 V6 Join Date: Sep 2009 Location: Edmonton, Alberta Canada Posts: 17 iTrader: 0 reviews	A crank for $300 or the whole motor. All the cranks are the same.

February 14th, 2010, 11:52 PM	#19
ESG-642T [8MINUS2] 2002, Ford, v6 Join Date: Feb 2007 Location: TEXAS Posts: 12,319 iTrader: 0 reviews	Interesting, so what does the total price come out for a build short block using the o.e. wiesco's and scat rods? __________________ Hi, You can call me Kyle Random ESG fact: Had a prochamber on his v6 before it was popular. WTB: v6 BBK valve covers

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February 15th, 2010, 01:17 AM	#20
Flex Newbie 1994 V6 Join Date: Sep 2009 Location: Edmonton, Alberta Canada Posts: 17 iTrader: 0 reviews	That depends. Are you studding the mains, using mls gaskets, new timing chain etc.? So basically, it depends on the parts. The pistons through SCU are $75 for an SC piston and I can't see it being more for an N/A. C.A.T. b beam rods are $360. SCAT rods are $466 with 8740 bolts. David used to sell them for $300 a set. Not sure how much now. MLS gaskets are about $80 a pop. Timing chain is about $40. The machine work depends on your shop.

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