hi does anyone know of an exhaust manifold ( not extractors) for a 4kc motor that has twin outlets,

 

the ke70 i have has a cast iron exhaust manifold that has a single pipe outlet, i would like a twin outlet.

 

the motor and 5 speed gearbox slightly warmed is going into a Honda S600 roadster, also using the corolla rearend but narrowed, i'm using twin 1.5 inch su carbys.

 

i don't want to run extractors unless there is no other option, if i could get a twin outlet cast iron manifold that would hopfully free it up enough.

 

any thoughts??????

 

regards Ewen

Twin outlets manifolds come out on pre-1974 corolla's :P Anything after that is a single outlet.

Both interchangable.

 

I pulled my ke55 twin out mani off and put a ke70 single outlet one on to do the j-pipe turbo set up.

 

Twin outlets flow better than single.

 

One thing to bear in mind though - if you are not using a stock inlet maifold (which you obviously aren't because of the SU's) you will be left with a hole in the top of the exhasut mainfold were the inlet bolts to it. You'll have to make up a plate to cover this.

Twin outlets manifolds come out on pre-1974 corolla's :D Anything after that is a single outlet.

 

Incorrect. :P

 

KE55's have twin outlets.

 

I have found that basically anything up to KE70 has twin outlets.

are they available, should i look at wreckers, has any one got one laying around there back shed, i'm on the southside of Brisbane. and a carton of beer could be made available

 

Regards Ewen

Taz, I looked in the ACL catalogue yesterday because I required a twin outlet exhaust flange gasket and the exhaust flange gasket lists a twin outlet up to 1974 and anything after that is single outlet. :P

 

If a KE55 has a twin outlet, its because that exhaust manifold came off of an early model 3K motor.

Every Ke55 I've ever seen (heaps) have all had twin outlets! :P

Every Ke55 I've ever seen (heaps) have all had twin outlets! :P

 

Both of the 55s that I've owned have had the 4-2-1, with the 2-1 bit happening in the engine pipe as opposed to the manifold. Both of those manifolds I'm 99% certain are stock to the 55 too

and ke10's and ke20's (pre 74) had just a single pipe 4-1 style manifold with only 2 bolts on the flange instead of 3 like a ke70 has, so you want the mani from a 74-81 corolla, or a ke30-ke55

and ke10's and ke20's (pre 74) had just a single pipe 4-1 style manifold with only 2 bolts on the flange instead of 3 like a ke70 has, so you want the mani from a 74-81 corolla, or a ke30-ke55

 

KE70 single outlet on the left......ke10 (one james is talking about) single outlet on the right. Also note the bigger ports in the ke10 mani. :y: