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hey everyone, i was wondering if anyone could give me a list of parts to build a c4 to hold 600 hp. i did a search and only found stuff for 350-400. any help would be much appreciated. im looking at building my first c4 wich does not scare me at all, but im lost on what i will need to make it hold up to 600hp. thaks
 

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I built 2 trannies last year that lasted behind 2 approx 600 HP motors.
Surprisingly I used stock input shafts and planetaries.
The front planetary did have the thrust brgs replaced with torringtons
Alto red clutches with kolene steels, 5 in each pack with approx .005 clearance per clutch in the direct, forward as tight as possible.
Kevlar intermediate band
Stock low-rev band
Gear train converted to roller thrusts, thrusts in clutch packs and endplay washers are stock.
Broader perf kit at #9 in one, stock in the other.
H-servo in both, with very tight seals.
Both use high line pressure tranny brake VB's.
Deep pans with extended pickups
Teflon rings for both clutches
Endplay as tight as possible

Pretty basic but one had 100+ runs on it and was working fine at end of season

My low hp (approx 450) had 185 passes with the same setup and the tranny is mint condition


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<font size=-1>[ This Message was edited by: Mario428 on 2/21/06 6:09am ]</font>
 

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My trans is nearly identical to Marios. About the only difference is 6 clutches in both drums, but I don't think it's nessessary. I was just experimenting.

I used to run a stock input shaft too. Never had a problem. I only changed to a hardened piece last year so I would feel better.

The main thing is use a GOOD valvebody with the right pressure.

Mine holds up to just under 600hp.
 

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Also running around 600hp with very similar builds to Mario and Clevelandstyle. I've had afew "issues" with mine but it appears to be an excessively worn stator support possibly causing the problems.
Unlike Mario & C/S , my stock input didn't last 2 minutes....twisted the splines "playing" on our back road when we first got the car together. I think I would put in an aftermarket input shaft for peace of mind.
I also had an oiling issue with the stock planetery, the housing "blued" around the shafts - indicating lack of oil/excessive thrust. I drilled two 1/8" holes beside each shaft to get some oil in there and the problem seems cured.
 

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On 2006-02-21 03:37, gregaust wrote:
Use the filter with the rubber grommet and make a tube .I could dig up a pic or take a pic of mine when i do it soon.
[/quote]

Could you send me a pic. I was going to made a filter from a mid 70's mustang with a deep pan fit.
 

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On 2006-02-21 20:18, rbizz wrote:
That filter does not fit a early VB. Two hole don't line up and it doesn't cover the whole raised section. How do you get it to work.
Sorry about that but I have never used an early valve body so I do not know if it will work.
I have fabricated approx the same thing using a peice of tube epoxyed to a filter though.
 

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On 2006-02-22 05:27, rbizz wrote:
Isn"t your PA VB a early one.
Well it is for 70 & up, early to me means 69 and before.
I have used the filter in the pic on it with no issues.
PA brake VB has a machined billet transfer plate, only the valved portion of the VB is stock. So it is machined for the 70 & up filter.
 
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