SVT vs MACH engines

07BossGT · November 4th, 2007, 07:53 PM

Is it true that the MACH engine bottom end is the same as the SVT bottom end?

HMUSN · November 4th, 2007, 07:54 PM

no.

the 5spd mach only has a forged crank.

everything on the 03-04 Cobra bottom end is forged.

BWAL · November 4th, 2007, 08:28 PM

Originally Posted by HMUSN

no.

the 5spd mach only has a forged crank.

everything on the 03-04 Cobra bottom end is forged.

doesn't the mach have forged pistons, too?

i read in car craft magazine that every mustang (1985+) came stock with forged pistons

HMUSN · November 4th, 2007, 08:29 PM

not sure but I doubt it.

mattstang · November 4th, 2007, 08:29 PM

Originally Posted by BWAL09

Originally Posted by HMUSN

no.

the 5spd mach only has a forged crank.

everything on the 03-04 Cobra bottom end is forged.

doesn't the mach have forged pistons, too?

i read in car craft magazine that every mustang (1985+) came stock with forged pistons

no im pretty sure mach didnt and i know every stang 85+ didnt.

BWAL · November 4th, 2007, 08:33 PM

i have the article right here.. word for word it says

"The '85 and later Mustang engines come with forged pistons, the engine has an outstanding bore-to-stroke configuration, and the '86 and later packages come with a hydraulic roller cam."

Car Craft Magazine - December 2007 issue, page 32

03 R Code · November 4th, 2007, 08:35 PM

That was before they switched to the hyperpathetic pistons in the modular engines.

And no the Mach doesn't have anything more than the crank forged, and that's only in the 5 speed cars. The auto's have a cast everything.

BWAL · November 4th, 2007, 08:36 PM

Originally Posted by 03 R Code

That was before they switched to the hyperpathetic pistons in the modular engines.

And no the Mach doesn't have anything more than the crank forged, and that's only in the 5 speed cars. The auto's have a cast everything.

gotcha

mattstang · November 4th, 2007, 08:42 PM

i thought 87+ werent forged

Mach Boy · November 4th, 2007, 09:15 PM

Because I'm not that knowledgeable when it comes to forged stuff I'm going to ask you guys, what else would I have to get besides forged pistons to have a "FI" engine? I figure if I already have the crank that's one thing down.

BWAL · November 4th, 2007, 09:20 PM

Originally Posted by Mach Boy

Because I'm not that knowledgeable when it comes to forged stuff I'm going to ask you guys, what else would I have to get besides forged pistons to have a "FI" engine? I figure if I already have the crank that's one thing down.

fuel injected? forced induction? ohhh you mean forged internals!

crankshaft, pistons, and connecting rods

Mach Boy · November 4th, 2007, 09:23 PM

Thanks smartass

07BossGT · November 4th, 2007, 09:24 PM

Ok... So does anybody have the bottom line? No pun intended...

BWAL · November 4th, 2007, 09:25 PM

the bottom line is that the cobra has fully forged internals, while the 5 speed mach only has a forged crank, and the automatic mach is all cast

07BossGT · November 4th, 2007, 09:26 PM

Got it... Thanks guys!

Eagle2000GT · November 5th, 2007, 07:16 AM

According to Mustangs and Fast Fords (August 2007), the Mach 1 has the same motor as a Mercury Maurader. In comparing the Mach 1 to the '99/'01 Cobra they said that its compression is 10.0:1 compared to the Cobra's 9.86:1. It has the same high flow heads as the '03/'04 Cobra but different cams. The Mach 1's cams are basically the same as the ones in the 5.4L Navigator. It came with a solid axle 3.55:1 rear-end while the Cobra's had an independent suspension 3.27:1 rear-end.

I believe the only 4.6 that came from the factory with forged internals was the '03/04 Cobra. It came from the factory supercharged. The Mach 1 didn't. While it may be true, the forged crank in the Mach 1 defies logic. The cast crank is good up to 650 rwhp, the cast rods/pistons 420-450. Why would Ford change and put a 1000 hp crank in the motor with 420 hp pistons? Maybe it had something to do with the Maurader? It doesn't matter. Without changing the rods/pistons the Mach 1 motor has the same maximum horsepower limitation as all other 4.6s (except the terminator) and that's 420-450 rwhp.

04GTAMPA · November 5th, 2007, 12:48 PM

Remember, the force from a manual tranny is not the same as an auto. The crank takes more crap through the flywheel from a manual than an auto, again. Why do you think we see more busted bearings from manual than auto? It's just something that almost no one ever considers.

TheBusher · November 6th, 2007, 04:14 PM

Originally Posted by Eagle2000GT

According to Mustangs and Fast Fords (August 2007), the Mach 1 has the same motor as a Mercury Maurader. In comparing the Mach 1 to the '99/'01 Cobra they said that its compression is 10.0:1 compared to the Cobra's 9.86:1. It has the same high flow heads as the '03/'04 Cobra but different cams. The Mach 1's cams are basically the same as the ones in the 5.4L Navigator. It came with a solid axle 3.55:1 rear-end while the Cobra's had an independent suspension 3.27:1 rear-end.

I believe the only 4.6 that came from the factory with forged internals was the '03/04 Cobra. It came from the factory supercharged. The Mach 1 didn't. While it may be true, the forged crank in the Mach 1 defies logic. The cast crank is good up to 650 rwhp, the cast rods/pistons 420-450. Why would Ford change and put a 1000 hp crank in the motor with 420 hp pistons? Maybe it had something to do with the Maurader? It doesn't matter. Without changing the rods/pistons the Mach 1 motor has the same maximum horsepower limitation as all other 4.6s (except the terminator) and that's 420-450 rwhp.

I thought the Termi had 3.55's also???

TheBusher · November 6th, 2007, 04:16 PM

Originally Posted by BWAL09

the bottom line is that the cobra has fully forged internals, while the 5 speed mach only has a forged crank, and the automatic mach is all cast

The auto also spins 1,000 less rpms then the manual. I'm gonna assume that's because of the whole forged crank bussiness... maybe???

WilltheThrill · November 6th, 2007, 04:17 PM

Originally Posted by TheBusher

Originally Posted by Eagle2000GT

According to Mustangs and Fast Fords (August 2007), the Mach 1 has the same motor as a Mercury Maurader. In comparing the Mach 1 to the '99/'01 Cobra they said that its compression is 10.0:1 compared to the Cobra's 9.86:1. It has the same high flow heads as the '03/'04 Cobra but different cams. The Mach 1's cams are basically the same as the ones in the 5.4L Navigator. It came with a solid axle 3.55:1 rear-end while the Cobra's had an independent suspension 3.27:1 rear-end.

I believe the only 4.6 that came from the factory with forged internals was the '03/04 Cobra. It came from the factory supercharged. The Mach 1 didn't. While it may be true, the forged crank in the Mach 1 defies logic. The cast crank is good up to 650 rwhp, the cast rods/pistons 420-450. Why would Ford change and put a 1000 hp crank in the motor with 420 hp pistons? Maybe it had something to do with the Maurader? It doesn't matter. Without changing the rods/pistons the Mach 1 motor has the same maximum horsepower limitation as all other 4.6s (except the terminator) and that's 420-450 rwhp.

I thought the Termi had 3.55's also???

youre right

November 4th, 2007, 07:53 PM	#1
07BossGT Regular Join Date: Jan 2007 Posts: 207 iTrader: 0 reviews	SVT vs MACH engines Is it true that the MACH engine bottom end is the same as the SVT bottom end? __________________ '07 Grabber Orange GT 5-spd Just got it 12/26/06 Tinted Windows 4.10 Gears A WHOLE LOTTA FUN!!!

November 4th, 2007, 07:54 PM	#2
HMUSN Doc 1986 SVO Join Date: Nov 2006 Posts: 36,836 iTrader: 9 reviews	no. the 5spd mach only has a forged crank. everything on the 03-04 Cobra bottom end is forged. __________________

November 4th, 2007, 08:29 PM	#4
HMUSN Doc 1986 SVO Join Date: Nov 2006 Posts: 36,836 iTrader: 9 reviews	not sure but I doubt it. __________________

November 4th, 2007, 08:35 PM	#7
03 R Code MM Fanatic unstoppable @ speed of light Join Date: Jul 2006 Location: Knees deep in dat ass Posts: 3,103 iTrader: 0 reviews	That was before they switched to the hyperpathetic pistons in the modular engines. And no the Mach doesn't have anything more than the crank forged, and that's only in the 5 speed cars. The auto's have a cast everything. __________________ Political correctness is a doctrine fostered by a delusional, illogical, liberal minority, and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end.

November 4th, 2007, 09:15 PM	#10
Mach Boy MM's Orangest 2004 Mach 1 Mustang Join Date: Sep 2007 Location: Indy Posts: 2,820 Blog Entries: 1 iTrader: 1 reviews	Because I'm not that knowledgeable when it comes to forged stuff I'm going to ask you guys, what else would I have to get besides forged pistons to have a "FI" engine? I figure if I already have the crank that's one thing down. __________________ 360HP / 345TQ N/A

November 4th, 2007, 08:42 PM	#9
mattstang Hardcore Enthusiast Join Date: May 2007 Posts: 1,762 iTrader: 1 reviews	i thought 87+ werent forged

November 4th, 2007, 09:23 PM	#12
Mach Boy MM's Orangest 2004 Mach 1 Mustang Join Date: Sep 2007 Location: Indy Posts: 2,820 Blog Entries: 1 iTrader: 1 reviews	Thanks smartass __________________ 360HP / 345TQ N/A

November 4th, 2007, 09:24 PM	#13
07BossGT Regular Join Date: Jan 2007 Posts: 207 iTrader: 0 reviews	Ok... So does anybody have the bottom line? No pun intended... __________________ '07 Grabber Orange GT 5-spd Just got it 12/26/06 Tinted Windows 4.10 Gears A WHOLE LOTTA FUN!!!

November 4th, 2007, 09:26 PM	#15
07BossGT Regular Join Date: Jan 2007 Posts: 207 iTrader: 0 reviews	Got it... Thanks guys! __________________ '07 Grabber Orange GT 5-spd Just got it 12/26/06 Tinted Windows 4.10 Gears A WHOLE LOTTA FUN!!!

November 5th, 2007, 07:16 AM	#16
Eagle2000GT MM Fanatic 2000 Mustang GT 12.73@111.36 Join Date: Aug 2007 Location: Shelbyville, IN Posts: 4,733 iTrader: 1 reviews	According to Mustangs and Fast Fords (August 2007), the Mach 1 has the same motor as a Mercury Maurader. In comparing the Mach 1 to the '99/'01 Cobra they said that its compression is 10.0:1 compared to the Cobra's 9.86:1. It has the same high flow heads as the '03/'04 Cobra but different cams. The Mach 1's cams are basically the same as the ones in the 5.4L Navigator. It came with a solid axle 3.55:1 rear-end while the Cobra's had an independent suspension 3.27:1 rear-end. I believe the only 4.6 that came from the factory with forged internals was the '03/04 Cobra. It came from the factory supercharged. The Mach 1 didn't. While it may be true, the forged crank in the Mach 1 defies logic. The cast crank is good up to 650 rwhp, the cast rods/pistons 420-450. Why would Ford change and put a 1000 hp crank in the motor with 420 hp pistons? Maybe it had something to do with the Maurader? It doesn't matter. Without changing the rods/pistons the Mach 1 motor has the same maximum horsepower limitation as all other 4.6s (except the terminator) and that's 420-450 rwhp. __________________ ProCharger P-1SC, 9 psi, STD 396/383; Uncorrected 388/375; SAE 383/370 Mods list in Garage.

November 5th, 2007, 12:48 PM	#17
04GTAMPA Hardcore Enthusiast 2001 Mustang SVT Cobra Join Date: Apr 2007 Location: Riverview, FL Posts: 2,751 iTrader: 1 reviews	Remember, the force from a manual tranny is not the same as an auto. The crank takes more crap through the flywheel from a manual than an auto, again. Why do you think we see more busted bearings from manual than auto? It's just something that almost no one ever considers. __________________ Slow, really slow Cobra. Wanna see? MM Cobra Club Member #81 "TAMPA BAY AREA CREW"

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