DOHC conversion

[GreyGoose006]

i remember a while ago my uncle mentioned something to me about a company he once found that had an aftermarket head to convert a chevy small block to DOHC. he didnt remember anything else about the name or anything.

if anybody has any info on this i would like to find out how it is done and how it works.

thanks



p.s.
google didnt help much

[UncleBob]

yah....it was rediculously expensive. Something like $20K for the setup. Most race regulations wouldn't allow it, and that makes it hard to have a large customer base. I doubt its still availible.

[Black Lotus]

Yeah, Moser is what you might be thinking of.
They were 4 valves per cylinder, pent-roof. Gilmer belt driven off the crank. Found a picture of an engine on a stand fitted with the heads and 4 Webers. Pretty weird looking.
EDIT-Just found another pic showing the business end with what apperars to be a very flat combustion chamber and the usual central plug. It has 6 hold down stud holes for each cylinder, which is weird too.

[2.2 Straight six]

getting an LT5 is a better option. 350ci small-block from a ZR-1 corvette. DOCH, 4 valves per cylinder.

[GreyGoose006]

yeah, but those are regularly selling for around 10,000... for the engine.
who thinks that GM should bring it back again?
am i alone here?

[GreyGoose006]

http://www.museumofamericanspeed.com...nes/E038.shtml

there it is

[2.2 Straight six]

Originally Posted by GreyGoose006

yeah, but those are regularly selling for around 10,000... for the engine.
who thinks that GM should bring it back again?
am i alone here?

still cheaper than a $20,000 conversion.

i think it should be brought back, or a new small-block quad-cam made for the next camaro and corvette.

until then, we've got the 4.4 and 4.6 Northstar.

[UncleBob]

its all about performance vs cost. Not saying that you can do more with a pushrod motor, but cost wise, its a hell of a lot cheaper in all aspects.

Just a question of how much power you want....but you can make an unbelievable amount with the right combination either way

[2.2 Straight six]

yeah. single cam V8s aren't "worse" than quad cam ones, they benefit in reliability in less parts. the advantage of a quad cam V8 is refinement, extra-fine tuning etc..

[GreyGoose006]

and the ease of variable valve timing and independant cam timing.
it would also allow for tighter clearances and less weight per cam.

besides... it sounds amazing

[GreyGoose006]

can anybody identify this engine?

[KiwiBacon]

I heard Yamaha had a quad cam setup. But it's only something I heard.

Just buy a Lexus V8. Problem solved.

[GreyGoose006]

yeah, but getting that to work in my car would be hell

[Black Lotus]

Originally Posted by 2.2 Straight six

ad cam ones, they benefit in reliability in less parts. the advantage of a quad cam V8 is refinement, extra-fine tuning etc..

Refinement? LOL!
Nothing to do with more valve area and periphery for higher revs and HP then?

[GreyGoose006]

well that too, but that all leads to more refinement in the end