ls swap sm465 with headers now slave cylinder will not fit

[Ricko1966]

FWIW the pull type slave is not rocket science, I've seen the rear mount as crude as a piece of chain attached to the slave and the chain bolted to something solid. Usually the frame,not how I'd do it,but it has been done. Attached to the floor,the frame,a crossmember.

 

[Steelbuddha]

Seems like unless your engine is built to make 500 HP, the difference between headers and aftermarket manifolds would be negligible. You could sell your headers and probably come out close to even, your slave would fit, and you wouldn't have to reinvent the wheel. Just my $.02.

 

[Ricko1966]

I call B.S. on headers only being good on big horsepower or at high rpms. I'm putting up 2 pics of dyno tests,both these had some of the best factory exhaust manifolds available. 1 was a stone stock 350 2bbl other than Corvette tubular rams horns. The other engine also had some of the best factory manifolds available 2.5 inch rams horns. These differences would have been even bigger,had they had factory 2.25 inch log manifolds. The zz3 engine loses like 30hp( I forget the exact number I think it was actually bigger) running factory manifolds vs dyno headers. As part of the HP. packages on factory engines,they got better exhaust manifolds. FYI There's a 10 hp difference between an lt1 Corvette and an LT 1 Camaro same engine only difference I'm aware of was Corvette had rams horns manifolds.

 

[bucket]

I call B.S. on headers only being good on big horsepower or at high rpms. I'm putting up 2 pics of dyno tests,both these had some of the best factory exhaust manifolds available. 1 was a stone stock 350 2bbl other than Corvette tubular rams horns. The other engine also had some of the best factory manifolds available 2.5 inch rams horns. These differences would have been even bigger,had they had factory 2.25 inch log manifolds. The zz3 engine loses like 30hp( I forget the exact number I think it was actually bigger) running factory manifolds vs dyno headers. As part of the HP. packages on factory engines,they got better exhaust manifolds. FYI There's a 10 hp difference between an lt1 Corvette and an LT 1 Camaro same engine only difference I'm aware of was Corvette had rams horns manifolds.

Lol, please repost this elsewhere. It seems to happen more and more often lately where someone posts "Headers only make more power at high rpm, on fully built engines". Or the worse one "Manifolds make more power at low RPM".

The results on big blocks tend to be even better than the small block too.

 

[Ricko1966]

Lol, please repost this elsewhere. It seems to happen more and more often lately where someone posts "Headers only make more power at high rpm, on fully built engines". Or the worse one "Manifolds make more power at low RPM".

The results on big blocks tend to be even better than the small block too.

Here's a couple more both dam near stock 305s. One has an isky 256 a performer man8fold and a 650 Holley,headers picked up 11 horsepower on a dynod 211hp engine. Other one was a guys daily driver,hobby drag car 1977 Malibu,basically stock 305 with 100k on the clock, look at his ETs he doesn't have dyno numbers.

 

[bucket]

Yep and while it's only 11hp, that's a difference that you can easily notice when you're short on HP to begin with.

 

[Raybob9289]

I know you don't wanna here it but go with the cast LS swap exhaust manifolds.

 

[SquareRoot]

An extra 10-15 hp ain't worth the headache on a street driven vehicle. And just because you can squeeze the slave cylinder in next to the collector don't expect it to last long when the heat fries the seals. Hmmmm...I wonder if hydraulic fluid is flammable

 

[hoagster]

I had the reverse problem I have cast hooker manifolds and they get in the way of non hydraulic clutch. Took some doing but got it solved. Hang in there someone has out there has solved it!

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