93 mark viii springs

majorownage · May 5th, 2011, 08:11 PM

My buddy picked up a 93 mark, and he is swapping the engine into his gt.

(The 2v bit the dust when a rod decided to leave the block)

I have heard rumors about these springs being crappier than later cobra/mark engines. Do they need to be replaced if he intends to run cobra cams?

DickH · May 5th, 2011, 09:46 PM

Cobra cams will be fine, they only have a little more duration.

majorownage · May 5th, 2011, 10:20 PM

Originally Posted by DickH

Cobra cams will be fine, they only have a little more duration.

EDIT:

96-98 mark viiis/cobras came with beehive valve springs (I know this)

Can anyone confirm that the earlier mark's didnt? That is what looks to be the case....

4valvegt · May 5th, 2011, 11:45 PM

I use to have a set of 93 mark 8 heads and a set of 96 cobra heads laying around when i did my 4 valve swap in the gt, i cant confirm it but I definetly remember a difference in the springs.

4valvegt · May 5th, 2011, 11:48 PM

Pre 96 does not I just googled it and found a bunch of hits on it

DickH · May 6th, 2011, 02:55 AM

I cant confirm it but I have heard that the later B head cobras had better springs. Either way the cobra cams aren't anything extreme and will be ok.

majorownage · May 6th, 2011, 05:23 AM

Originally Posted by DickH

I cant confirm it but I have heard that the later B head cobras had better springs. Either way the cobra cams aren't anything extreme and will be ok.

LOL how can you say that?

Tang Stang · May 6th, 2011, 09:21 AM

Originally Posted by 4valvegt

Pre 96 does not I just googled it and found a bunch of hits on it

Correct.

May 5th, 2011, 08:11 PM	#1
majorownage Regular Join Date: Jun 2010 Posts: 424 iTrader: 0 reviews	93 mark viii springs My buddy picked up a 93 mark, and he is swapping the engine into his gt. (The 2v bit the dust when a rod decided to leave the block) I have heard rumors about these springs being crappier than later cobra/mark engines. Do they need to be replaced if he intends to run cobra cams? __________________ 1998 Gt full pi swap -Dead and gone 1998 Mark VIII 4.30s, 125 shot, 93 d/s-Daily Driver 1998 BAB Cobra-Project

May 5th, 2011, 09:46 PM	#2
DickH MM Fanatic 2003 gt 5.4 32v on the way Join Date: May 2007 Location: Omaha Posts: 4,188 iTrader: 2 reviews	Cobra cams will be fine, they only have a little more duration. __________________ 2003 Mustang gt - usual mods - slowly working on 5.4 swap 2004 srt4 - Stock DD/winter beater Click here for your tuning needs Before asking a gearing related question click THIS link and enjoy all your saved time.

May 5th, 2011, 11:45 PM	#4
4valvegt Enthusiast 03 Cobra Join Date: Oct 2009 Location: Nebraska Posts: 809 iTrader: 1 reviews	I use to have a set of 93 mark 8 heads and a set of 96 cobra heads laying around when i did my 4 valve swap in the gt, i cant confirm it but I definetly remember a difference in the springs. __________________ MM Cobra Club #86 2003 Mineral Grey Cobra 2004 True Blue F-150 FX4

May 5th, 2011, 11:48 PM	#5
4valvegt Enthusiast 03 Cobra Join Date: Oct 2009 Location: Nebraska Posts: 809 iTrader: 1 reviews	Pre 96 does not I just googled it and found a bunch of hits on it __________________ MM Cobra Club #86 2003 Mineral Grey Cobra 2004 True Blue F-150 FX4

May 6th, 2011, 02:55 AM	#6
DickH MM Fanatic 2003 gt 5.4 32v on the way Join Date: May 2007 Location: Omaha Posts: 4,188 iTrader: 2 reviews	I cant confirm it but I have heard that the later B head cobras had better springs. Either way the cobra cams aren't anything extreme and will be ok. __________________ 2003 Mustang gt - usual mods - slowly working on 5.4 swap 2004 srt4 - Stock DD/winter beater Click here for your tuning needs Before asking a gearing related question click THIS link and enjoy all your saved time.

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