4.6 blocks

40thmustanggt · March 17th, 2011, 06:34 PM

is there any diffrence in the 96-98 blocks vs the 99-04? how much power can the stock block hold? my car will be paid off soon and im looking to make it a track car.. i know about the non pi vs pi stuff im just wondering about the blocks..

ForestGRN_Ghost · March 18th, 2011, 05:02 AM

i belive they are. with the exception of cobra blocks. they are aluminum.

cliffyk · March 18th, 2011, 05:35 AM

The stock GT rotating assembly can handle 400rwHP or so, with some headroom left--the general consensus is that the rods are the weak point.

I asked this question of a friend who has been in the tuning business for over 25 years; without hesitation he said (exact quote) "They break at 420rwHP, you can set your watch by it." If you search the forums you'l find a bunch of tales of them blowing up, in use and on dyno's, at 400 to 430rwHP.

Also consider that Ford was not comfortable building the 390fwHP (flywheel) Cobras on the GT rotating assembly, they likely had a pretty good grip on what it could handle and meet their design life criteria.

Kevin C · March 18th, 2011, 05:52 AM

Around 400 RWHP is typically the general consensus for a stock cam, unported stock head, blown 2V. On 3 Performance made 440 RWHP 496 RWTQ on an otherwise bone stock single turbo 2002 GT.

Imagine if they threw on some MMR ported Trickflows, MMR turbo cams, in the name of efficiency. Not just turning up the boost, and being able to grenade the stock internals with that sort of accuracy.

I love a good centrifugal setup, but turbos have the edge in efficiency, therefore raising that little threshhold of what a 2V can do on stock internals.

2SLO2GO · March 18th, 2011, 08:47 AM

im sittin right at 400/393 with stock cams and 10lbs. putting in stage 1 cams this weekend with a new tune directly to follow. i found a teskid shortblock for 350 bones!!!!

dcook_14 · March 18th, 2011, 11:14 AM

I'm not sure if these guys are answering what you're asking, they are all talking about the internals... As far as the blocks go, the iron blocks are strong as hell and can handle over 1000 rwhp. If you find a Teksid they are still plenty strong and can handle at least 800+ and some say up to 1000 rwhp.

40thmustanggt · March 18th, 2011, 09:15 PM

Originally Posted by dcook_14

I'm not sure if these guys are answering what you're asking, they are all talking about the internals... As far as the blocks go, the iron blocks are strong as hell and can handle over 1000 rwhp. If you find a Teksid they are still plenty strong and can handle at least 800+ and some say up to 1000 rwhp.

thank you this is what i was looking for!! now if the stock block can handle up to 1000hp why do people buy the mmr 900 blocks and what not? also someone explain to me if you change a non pi motor over to pi you get a bump in compression along with alittle more power?

2SLO2GO · March 18th, 2011, 09:24 PM

Originally Posted by dcook_14

I'm not sure if these guys are answering what you're asking, they are all talking about the internals... As far as the blocks go, the iron blocks are strong as hell and can handle over 1000 rwhp. If you find a Teksid they are still plenty strong and can handle at least 800+ and some say up to 1000 rwhp.

according to the first paragraph its 1500 hp for basis design

stal94gt · March 18th, 2011, 09:27 PM

Originally Posted by 40thmustanggt

thank you this is what i was looking for!! now if the stock block can handle up to 1000hp why do people buy the mmr 900 blocks and what not? also someone explain to me if you change a non pi motor over to pi you get a bump in compression along with alittle more power?

people buy the mmr 900 motors cause they are built sb's. i ran one in my last stang. block prep is around 500, and a new block is 600. mmr also charges 300 dollars to balance and install the rotating assembly so it is cheaper in the long run to buy a assembled sb from them.

86er · March 18th, 2011, 09:39 PM

a teksid short block is junk, except for the block.

a teksid block will handle what ever you throw at it, no if's and or buts about it.

2SLO2GO · March 18th, 2011, 09:46 PM

Originally Posted by 86er

a teksid short block is junk, except for the block.

a teksid block will handle what ever you throw at it, no if's and or buts about it.

so 350 bucks worth it???? i think yes ha ha ha ha!

40thmustanggt · March 18th, 2011, 09:58 PM

so im looking to start building the mustang will be paid off in a few more months.. whats my best bet? mmr block or stock block? id like to do H/C/I with alittle juice.. i really want to do all the work myself but ive never tore down a motor or rebuild one. i am good at taking things apart and putting them back together though.. should i attempt this or pay to have it done?

stal94gt · March 18th, 2011, 10:01 PM

Originally Posted by 40thmustanggt

so im looking to start building the mustang will be paid off in a few more months.. whats my best bet? mmr block or stock block? id like to do H/C/I with alittle juice.. i really want to do all the work myself but ive never tore down a motor or rebuild one. i am good at taking things apart and putting them back together though.. should i attempt this or pay to have it done?

mmr blocks are stock blocks. what makes them handle more is the manly pistons, manly rods, and kellog cranks they put in them. for h/c/i you could use your stock bottom end, but if your wanting to make some big power on spray for forced induction i would upgrade to a built shortblock and if you dont have a lot of wrench time i would buy a built long block and just drop it in and go.

limited · March 18th, 2011, 10:39 PM

Originally Posted by 86er

a teksid short block is junk, except for the block.

a teksid block will handle what ever you throw at it, no if's and or buts about it.

+1, 800hp limit is just a joke. if you search i am sure you can find 2000hp teksids

2SLO2GO · March 18th, 2011, 10:42 PM

Originally Posted by limited

+1, 800hp limit is just a joke. if you search i am sure you can find 2000hp teksids

there are a few ive seen in tn!

kyle2002stang! · March 18th, 2011, 11:19 PM

the teksid is by far the strongest 4.6 block ford produced from the factory. i wouldnt be surprised to see them holdin up to 1500hp. they came in the 96-98 cobras and the 93-98 lincoln mark8's. the major weak spot in the 99-04 GT's is the stock internals that can only handle 400rwhp, not the block.

WhiteVenom · March 18th, 2011, 11:26 PM

google:
Windsor block
Teskid block
Romeo block

^ Compare and contrast and pick whats best for you

/thread.

WhiteVenom · March 18th, 2011, 11:27 PM

Originally Posted by kyleD.31

the teksid is by far the strongest 4.6 block ford produced from the factory. i wouldnt be surprised to see them holdin up to 1500hp. they came in the 96-98 cobras and the 93-98 lincoln mark8's. the major weak spot in the 99-04 GT's is the stock internals that can only handle 400rwhp, not the block.

Ive been told my dcook this is no longer true as i thought it was.

kyle2002stang! · March 18th, 2011, 11:28 PM

Originally Posted by WhiteVenom

Ive been told my dcook this is no longer true as i thought it was.

you sure? everything ive read says the teksid is strongest

WhiteVenom · March 18th, 2011, 11:31 PM

I was sure it was the strongest but i was told by an army of people that it is not. Mostly because aluminum contracts and expands depending on the weather. A video of a 2000 hp teskid block car was posted though...

Windsor is the strongest i guess. It doesnt matter they will all hold over 800rwhp without a problem.

March 17th, 2011, 06:34 PM	#1
40thmustanggt Hardcore Enthusiast Join Date: Jun 2007 Location: southcarolina Posts: 1,354 iTrader: 0 reviews	4.6 blocks is there any diffrence in the 96-98 blocks vs the 99-04? how much power can the stock block hold? my car will be paid off soon and im looking to make it a track car.. i know about the non pi vs pi stuff im just wondering about the blocks.. __________________

March 18th, 2011, 05:02 AM	#2
ForestGRN_Ghost Enthusiast 99 mustang GT Join Date: Apr 2009 Location: spokane Posts: 992 iTrader: 0 reviews	i belive they are. with the exception of cobra blocks. they are aluminum. __________________

March 18th, 2011, 05:35 AM	#3
cliffyk Hardcore Enthusiast Join Date: Feb 2007 Location: Saint Augustine, FL Posts: 1,807 iTrader: 1 reviews	The stock GT rotating assembly can handle 400rwHP or so, with some headroom left--the general consensus is that the rods are the weak point. I asked this question of a friend who has been in the tuning business for over 25 years; without hesitation he said (exact quote) "They break at 420rwHP, you can set your watch by it." If you search the forums you'l find a bunch of tales of them blowing up, in use and on dyno's, at 400 to 430rwHP. Also consider that Ford was not comfortable building the 390fwHP (flywheel) Cobras on the GT rotating assembly, they likely had a pretty good grip on what it could handle and meet their design life criteria. __________________ -cliff knight- My Mustang 2003 GT, UPR X, 24lb/h injectors, Magnaflow, 180° stat, PP 70mm TB & plenum, DF Commando, Steeda UDPs, Ralco RZ_flywheel, RAM HDX clutch, WX EFX COPs 3.73s, 262 rwHP/305 lb-ft. Flex-fuel: burns gas and rubber... Last edited by cliffyk; March 18th, 2011 at 05:40 AM.

March 18th, 2011, 05:52 AM	#4
Kevin C Hardcore Enthusiast 2001 Mustang GT 34.82 @ 21 Join Date: Feb 2010 Location: Delaware Posts: 1,657 iTrader: 4 reviews	Around 400 RWHP is typically the general consensus for a stock cam, unported stock head, blown 2V. On 3 Performance made 440 RWHP 496 RWTQ on an otherwise bone stock single turbo 2002 GT. Imagine if they threw on some MMR ported Trickflows, MMR turbo cams, in the name of efficiency. Not just turning up the boost, and being able to grenade the stock internals with that sort of accuracy. I love a good centrifugal setup, but turbos have the edge in efficiency, therefore raising that little threshhold of what a 2V can do on stock internals. __________________ '01 GT - T56 6 Speed - Centerforce DFX - SCT LiveWire - Borla Stingers - Magnaflow Catted X - Steeda Tri Ax - Cobra Aluminum Driveshaft - 3.73s - Eibach Pro-Kit - MM Full Length Subframe Connectors - MM Caster Camber Plates Vortech V1 sold

March 18th, 2011, 11:14 AM	#6
dcook_14 Banned 2004 Mustang GT 12.35@114.08 w/ 1.88 60' Join Date: Feb 2009 Location: Waterloo, IA Posts: 7,015 Blog Entries: 2 iTrader: 7 reviews	I'm not sure if these guys are answering what you're asking, they are all talking about the internals... As far as the blocks go, the iron blocks are strong as hell and can handle over 1000 rwhp. If you find a Teksid they are still plenty strong and can handle at least 800+ and some say up to 1000 rwhp. __________________ Do the Right Thing, Cook. ~Zip.

March 18th, 2011, 08:47 AM	#5
2SLO2GO Regular 2000 Mustang GT Join Date: Jun 2010 Location: Pensacola, Fl Posts: 188 iTrader: 0 reviews	im sittin right at 400/393 with stock cams and 10lbs. putting in stage 1 cams this weekend with a new tune directly to follow. i found a teskid shortblock for 350 bones!!!!

March 18th, 2011, 09:39 PM	#10
86er I Post Entirely Way Too Much Join Date: Nov 2006 Location: Memphis, TN Posts: 7,630 iTrader: 0 reviews	a teksid short block is junk, except for the block. a teksid block will handle what ever you throw at it, no if's and or buts about it. __________________ Just a truck 5.4 3v: 264hp 317ft lbs rock stock The "search" button, its not just for porn piecing together the next project faster than your first sexual experience

March 18th, 2011, 09:58 PM	#12
40thmustanggt Hardcore Enthusiast Join Date: Jun 2007 Location: southcarolina Posts: 1,354 iTrader: 0 reviews	so im looking to start building the mustang will be paid off in a few more months.. whats my best bet? mmr block or stock block? id like to do H/C/I with alittle juice.. i really want to do all the work myself but ive never tore down a motor or rebuild one. i am good at taking things apart and putting them back together though.. should i attempt this or pay to have it done? __________________

March 18th, 2011, 11:19 PM	#16
kyle2002stang! I'm going On A Manhunt! 2002 true blue GT speed of time @ 88mph Join Date: Jun 2009 Location: 55 miles west of Aberdeen SD Posts: 2,351 iTrader: 0 reviews	the teksid is by far the strongest 4.6 block ford produced from the factory. i wouldnt be surprised to see them holdin up to 1500hp. they came in the 96-98 cobras and the 93-98 lincoln mark8's. the major weak spot in the 99-04 GT's is the stock internals that can only handle 400rwhp, not the block. __________________ mac lt's, mac O/R H pipe, spintech super prostreets, JLT RAI, 14"antenna, mach 1 chin spoiler, two 12" kickers.

March 18th, 2011, 11:26 PM	#17
WhiteVenom MM Fanatic 99 Cobra :p 12.36@119.35 Join Date: Oct 2010 Location: Lapeer Posts: 4,541 iTrader: 0 reviews	google: Windsor block Teskid block Romeo block ^ Compare and contrast and pick whats best for you /thread. __________________ MM COBRA CLUB #80 SRA SWAP WRITE UP!

March 18th, 2011, 11:31 PM	#20
WhiteVenom MM Fanatic 99 Cobra :p 12.36@119.35 Join Date: Oct 2010 Location: Lapeer Posts: 4,541 iTrader: 0 reviews	I was sure it was the strongest but i was told by an army of people that it is not. Mostly because aluminum contracts and expands depending on the weather. A video of a 2000 hp teskid block car was posted though... Windsor is the strongest i guess. It doesnt matter they will all hold over 800rwhp without a problem. __________________ MM COBRA CLUB #80 SRA SWAP WRITE UP!

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