I need help finding an 11 inch clutch for a Mark V 454. Either that, or would a clutch for a Mark IV work also?? The only 11 inch clutch for the Mark V I could find was on summit, and they wanted over $800 for it. I'm not really looking forward to paying that much, I was hoping I could find one for under $300.

 

Do you have a bellhousing that'll fit that big of a clutch first off? Typically 3rd gens have a tough time fitting those in there.

 

Well if not, it shouldn't be a problem finding one. Even a 10.4 inch is fine if I can find one.

 

Shouldn't an 11 inch or 10.4 or w.e size clutch i end up using bolt up to the flywheel if the flywheel will accept that size clutch reguardless of if the clutch is for a Mark V or Mark IV??

 

Bump...

 

Right, I keep forgetting to reply to this.
You just need a flywheel that'll mate up to a BBC crankshaft. I'm not sure how you've got the engine balanced, I don't know squat about BBC stuff.
http://store.summitracing.com/partde...7&autoview=sku
sounds like it'd work. There's a few there for under $300.

You'll need the bellhousing that can accept that big of a flywheel. I think lakewood makes one, $500. What tranny are you going to use?

Then any clutch that'll bolt up to a 168 tooth flywheel should work fine.
Here's a few that spec to mate up to a MarkV engine
http://store.summitracing.com/egnsea...4294889124+115

 

In your opinion Sonix, do you think it would make more sense to just forget the weak saginaw and throw in a built 700r4(With warranty, and good for up to about 500 horse)?

 

In my opinion? Yea, i'd ditch the saginaw, but I wouldn't go to a 700R4. Personally I like to shift, especially a torquey big block, that'd be tons of fun.

I'd look for a super T-10, or a T-56, or a TKO500/600.

 

I love to shift too, but I've only got about $750 i could put towards a tranny. If I went manual it would have to include everything to make my car run(Bellhousing, clutch, tranny, and flywheel). So unless I can find a hell of a deal, I think I'm gonna be stuck with an auto...

 

BTW, a 700r4 that is meant for a 5.0 or a 5.7 will fit a 454 right??

 

A 700r4 will bolt right up to a 454 motor. OMG, a Saginaw behind a 454? You might as well throw a T5 behind it. Saginaws usually don't even last behind a fairly tame small block motor. If your 454 is from the 70's era, they're externally balanced, so you'll need a flywheel (manual trans) or flexplate (auto trans) that's externally balanced. A 700r4 will need to be pretty beefed up to last behind a BBC, same goes for a TH350. Usually the best candidates for a BBC would be either a TH400 or a Super T10. If you want to have an overdrive, a Tremec TKO, T56, or the built 700r4 would be the way to go.

 

Alright, cool. The 700r should be good for over 500 horse. I'm pushing like half of that, but hopefully with like at least 350 ft. lbs of torque.

 

Hell a stock 454 should put out 350 ft. lbs. of torque.

 

It is stock... lol.