FAQ |
Members List |
Social Groups |
Calendar |
Search |
Today's Posts |
|
#1
|
|||
|
|||
Clutch recommend
Anybody know of a good clutch for a 66 gto ? 455 ci. Under 500hp. Best clutch for the $ ? Just looking for recommendations. Doing a gear vendors overdrive install and am thinking i should go ahead with new clutch now to avoid having to tear back apart later. Thoughts ?
|
#2
|
||||
|
||||
I have had very good luck with zoom clutches. I had one in my 64 GTO that got down right abused when I was 20. I have also used them in my chevy truck to haul firewood and stuff and it never slipped even fully loaded
__________________
468/TKO600 Ford thru bolt equipped 64 Tempest Custom. Custom Nocturne Blue with black interior. |
#3
|
||||
|
||||
I have driven a handful of cars with different clutches all between 350-500hp. To me I really liked both the Centerforce and the McCleod clutches. Personally iliked the McCleod clutch feel more than the Centerforce and that’s what I am going with for my current engine build.
__________________
1967 GTO, 432 (428+.030), 4-bolt mains, factory Nodular crank, scat rods, icon dished pistons, Lunati HR 243/251@.050, .618/.622 lift, Edelbrock 72cc round port heads, 10.5:1, offy 2-4 intake, Edelbrock 650cfm carbs, Super T10 trans (2.64 first), BOP 10 bolt w/ Eaton posi and 3.36 gears |
#4
|
|||
|
|||
I never liked my Centerforce. Replaced it with a Luk and it has held up great so far. Half the price of the Centerforce.
|
The Following User Says Thank You to danpaul For This Useful Post: | ||
#5
|
||||
|
||||
Looked at the kit as advertised online.
I have an M20 in the 1969 400HO. The bushing seems to be like its a hit or mis piece from the reading that is a bit un-certain which size / type is there, known only by remove and measure. Kit looked like had two different ones, is this true or a bad pic - misleading. Thx |
#6
|
||||
|
||||
Quote:
The smaller bushing can be turned down to fit the crank if the crank has not been machined for manual trans. the larger bushing or bearing fits in the crank where it should if the crank is for manual trans. I bought both of my kits from autozone, 120 bucks I think. just 10" Sachs. nothing special but they've held up well and I've used them with a M21 and 3.08 gears which is quite a mismatch but didn't know any better at the time. |
#7
|
|||
|
|||
I will also give you a screaming deal on my Centerforce. It has about 1500 miles on it.
|
#8
|
|||
|
|||
My last install behind my 455 stroker is a Mcleod Super Street Pro and I like it a lot. Not too stiff and holds the beast. P/N 75221. I shopped around and found Autozone has it for same price as Summit BUT AZ frequently has 20% off on order so I got for a great price. It is $240 right now if you use the discount code. Be surprised what you can find at AZ sometimes and get a good deal.
Not sure what spline trans you have so double check, this is for 26 spline. https://www.autozone.com/drivetrain-...archText=75221 |
#9
|
||||
|
||||
I second the Luk recommendation. I used to work for an ACDelco warehouse distributor and was able to buy an ACD (manufactured by Luk) at cost when I put my 462 in 2013. Like you, figured a new clutch at the time of the engine replacement was a good idea while everything was apart.
Best clutch I've ever had in my GTO which I've been driving since 1994. |
#10
|
||||
|
||||
Quote:
So now you have at least 3 who like the LUK stuff vs the Centerforce stuff. Borg and Beck before that. Tom V.
__________________
"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
#11
|
||||
|
||||
Summit has a zoom one for 179. I will be trying it first
__________________
468/TKO600 Ford thru bolt equipped 64 Tempest Custom. Custom Nocturne Blue with black interior. |
#12
|
|||
|
|||
My second car was a 66 gto, 4 spd, 389- 3 2's. Bought it for $450 in 1973-74. I was 16 yrs. Old. We used to go to the chevy dealer and get the clutch for a Z28 camaro ! Hard pedal but you couldn't hurt 'em !!!!! Tks. For all replies.
|
#13
|
|||
|
|||
I have used both Zoom and Centerforce. The Centerforce has been in since the mid 90's . the Zoom worked good with the 400 "spare engine.
__________________
1979 Trans Am WS-6 .030 455 zero decked flat pistons 96 heads with SS valves 041 cam with Rhoads lifters 1.65 rockers RPM rods 800 Cliffs Q Jet on Holley Street Dominator ST-10 4 speed (3.42 first) w 2.73 rear gear __________________________________________________ _______________________________ 469th TFS Korat Thailand 1968-69 F-4E Muzzle 2 |
#14
|
|||
|
|||
I have used both Zoom and Centerforce. The Centerforce has been in use since the mid 90's , The Zoom worked fine with my spare motor.
__________________
1979 Trans Am WS-6 .030 455 zero decked flat pistons 96 heads with SS valves 041 cam with Rhoads lifters 1.65 rockers RPM rods 800 Cliffs Q Jet on Holley Street Dominator ST-10 4 speed (3.42 first) w 2.73 rear gear __________________________________________________ _______________________________ 469th TFS Korat Thailand 1968-69 F-4E Muzzle 2 |
#15
|
||||
|
||||
I used Ram a lot when I was running UMTR and liked the pedal feel. Got a lot of street miles out of them without complaints.
I used Spec in the 4th gen Camaros for years and always liked that clutch setup, no complaints from them. 2 daily driver stick cars right now. I went with Centerforce II on one of them for my wife. Very nice pedal feel and after 30,000 miles it drives perfectly, no chatter, no issues, wife is happy with very easy clutch engagement and you don't need tree trunk legs to work it. The other car I tried a McLeod in. So far not all that happy. The pedal feel is quite a bit stiffer. It's just the mild street strip application good to 450 hp but it'll make your leg tired if you hold it at a light for a while. Also after just 1600 miles chatter is starting to set in. With a 2.95 first gear and 3.27 rear gear out back giving an effective ratio of 9.64 you'd think that would be fine, especially in a 3100 lbs. car. But it's not enough to make the McLeod clutch happy. I'll be stepping up the rear gear in this one to help the effective ratio, and if that doesn't settle the clutch down I'll be swapping that out next. Probably go straight to the Centerforce or Ram again. |
#16
|
||||
|
||||
Here's a fourth vote for LUK. Installed them in my '72, '73 and '78 with great success.
|
#17
|
|||
|
|||
I am not finding anything other than stock replacement quality for Luk clutches. I need a 10 spline, 10 1/2 " clutch that can handle 500 or so hp. Anybody know part # or where to look ? Tks.
|
#18
|
||||
|
||||
Yeah Luk is more of a stock type manufacture and what a lot of the parts stores around here carry. Fine if you want stock stuff and cheap $150-$200. Probably 95% of the guys here don't even race their cars and if they do it's just a little fun on street tires so the stock stuff works fine for them.
For anyone serious about clutch performance, sticky tires, and even just 1 or 2 trips to the track a year, I like using Centerforce, Ram, and Spec. They have all had really nice daily drive type pedal feel on their diaphragm clutches yet they've held everything I've thrown at them, down into the 11 second zone and sticky tires. But you're going to pay $500+ for a kit. I recently tried a McLeod and not 100% thrilled with it. Diaphragm 10.5" street strip for 450-ish hp and it feels like a truck clutch. Not to mention not even 2,000 miles on it and chatter is setting in, even with a somewhat decent effective 1st gear ratio. If it helps any, we have and daily drive a 69 Z/28, and the only thing special about those clutches is that they are small and as a result somewhat lighter weight. 10.4" with a small and lighter 153 tooth flywheel. Same setup GM also used on the L88 corvette back in the day. |
#19
|
||||
|
||||
This is good reply with the proper information.
The extra money is well worth the better parts that will hold up under, last under any condition and never cause regrets of a redo due to abuse of it... |
#20
|
||||
|
||||
I just sold my 68 390 AMX and it had a Centerforce II. It had the weights on the pressure plate but a standard type disc without the metallic pucks. Easy pedal and smooth engagement with no chatter and while that engine was no powerhouse it handled it easily.
Had a hays street/strip diaphragm in the GTO and it was ok. If I ever get another stick car I’d probably get another Centerforce.
__________________
68 GTO,3860# Stock Original 400/M-20 Muncie,3.55’s 13.86 @ 100 Old combo: 462 10.75 CR,,SD 330CFM Round Port E's,Old Faithful cam,Jim Hand Continental,3.42's. 1968 Pontiac GTO : 11.114 @ 120.130 MPH New combo: 517 MR-1,10.8 CR,SD 350CFM E's,QFT 950/Northwind,246/252 HR,9.5” 4000 stall,3.42's 636HP/654TQ 1.452 10.603 @ 125.09 http://www.dragtimes.com/Pontiac-GTO...lip-31594.html |
Reply |
|
|