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04-29-2017, 04:07 PM | #1 |
Registered User
Join Date: Apr 2017
Location: Victoria
Posts: 3
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I need Crankshaft help please!
I purchased an 03 Mach 1 recently with a knock coming from the engine. While in the process of rebuilding the engine I found that it had spun a bearing. I took the crank to the machine shop and he found a crack so it is worthless. The problem is that they no longer sell the forged 8 bolt crankshaft to my knowledge. What is the most cost effective solution to this? Will a cast crank work with my 5 speed if I try to keep the RPMs under 6,000?
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04-29-2017, 04:19 PM | #2 |
700 HP Mach
Join Date: Nov 2003
Location: Orlando, FL
Posts: 8,384
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Re: I need Crankshaft help please!
I believe there are 2 aftermarket suppliers for the forged crankshafts - eagle and pretty sure Manley just released one.
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03 dsg mach1 - MPR built 9.5:1 motor, D1, cams, ported intake, full exhaust, magnum t56, built rear, E85 etc... '12 F150 FX2 Supercrew with Ecoboost daily beater |
04-29-2017, 04:51 PM | #3 |
Registered User
Join Date: Mar 2008
Location: Jersey Shore
Posts: 1,349
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Re: I need Crankshaft help please!
Might be worth it to buy a full stroker kit.
Buy yeah Manley just came out with a new crank. |
04-29-2017, 04:53 PM | #4 |
Registered User
Join Date: Apr 2017
Location: Victoria
Posts: 3
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Re: I need Crankshaft help please!
Is forged the only way to go?
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04-29-2017, 05:12 PM | #5 |
700 HP Mach
Join Date: Nov 2003
Location: Orlando, FL
Posts: 8,384
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Re: I need Crankshaft help please!
if you were ever gonna build it for anything, yes. Just basic bolt ons (no nitrous or blower) Id have to image a cast would be fine.
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03 dsg mach1 - MPR built 9.5:1 motor, D1, cams, ported intake, full exhaust, magnum t56, built rear, E85 etc... '12 F150 FX2 Supercrew with Ecoboost daily beater |
04-29-2017, 09:31 PM | #6 |
Registered User
Join Date: Jan 2013
Location: San Diego, CA
Posts: 1,104
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Look around for a Cobra crank. I've seen them pop up for $400 or so.
Sent from my SAMSUNG-SM-G935A using Tapatalk
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New Ride: 2004 Mystichrome Cobra-Accufab SBTB and plenum, Steeda 2.8" upper, Bassani X, Borla Stingers, Mcleod RXT, MGW shifter, Level 5 halfshafts, chrome FR500's, Stiffler's FIT system and DS safety loop, GT pumps, BA3000, tuned by owner |
04-29-2017, 10:27 PM | #7 |
Registered User
Join Date: Jun 2004
Location: beaumont texas
Posts: 1,344
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Re: I need Crankshaft help please!
I'd go stroker
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2004white mach1 2001 svt lightning 2011 Mitsubishi Evo X 1999 F250 7.3L |
04-30-2017, 03:18 PM | #8 |
Mach-T
Join Date: Jun 2004
Location: DFW
Posts: 2,865
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Re: I need Crankshaft help please!
go forged and upgrade the rods and pistons while you are at it; may as well go stroker at that point. I like mine.
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Darrell Black '04 Mach 1 Track Times (bone-stock w/drs):60 ft - 1.90 | 1/8 - 8.67 (100 shot,E85,4:10s,Street tire):60 ft - 1.67 | 1/8 - 7.88 New build - 750rwhp; not track tested (yet) Mods: Build Log Paint&Body Tuned by Manny @ HPP |
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