What are you working on?

[Dr.Jass]

milling that head down would mean pistons smacking things....someone put soo much piston into it that they look like the mold made to make the head..

Yeah, all Hemi pistons are like that to some extent. Trust me, there's plenty of room. If there wasn't, it would already have 11.5:1 compression.

 

[68R/T]

A Go-Cart.

So now are we entering garden tractor competition? :hmmm:

It seems to be a very fast growing fad....and a whole lot cheaper than what you're already into. :doh:

 

[69.5CUDA]

yay a riding mocart..love those

doc one look at it and 10-1 odds are its allready got 11+ slugs in it..they AINT stock for sure..ad combined with the 40mm deloroto's header and semi radical cam...id seriously bet money on them being 11.5's ..it was raced in cali for a time...the entire piston dome is OUTSIDE the jug

 

[Dr.Jass]

Still typical of Hemi designs. Even low-compression Hemi supercharger pistons have the entire dome out of the bore.

 

[69.5CUDA]

thru some digging ive verifyed at minimum they are 10.5's..but all of the 10.5s ive looked at still dont have as much dome as whats in this lil beasty

fancy coating aside..they look just like these
http://www.ebay.com/itm/Alfa-Romeo-...Parts_Accessories&hash=item27e6052728&vxp=mtr

vs stock's
http://www.international-auto.com/a...al/identifying-2-liter-alfa-romeo-pistons.cfm

 

[Dr.Jass]

That second picture is quite informative; it bears out my point (especially in comparison with the first): You need to make an enormous change in dome volume for a relatively-small increase in compression. So, conversely, you can shave a shitload off a head with hemispherical chambers and not see much change in compression. Despite what they may look like, you have no idea what compression you have without a dome volume spec and a compression height. Change the compression height on the same dome and the world's nastiest racing dome becomes an 87-octane pussycat.

The 383 had an open-chamber volume of 88cc. The 426 Hemi, with the same bore, had a chamber volume nearly twice that. However, due to the shape of the combustion chambers, a .020" cut on a Hemi does not increase the compression by the same amount as a .010" cut on a 906 head. You have to go quite a bit more than that. You have to throw out everything you think you know about heads when you're dealing with a hemispherical chamber. It's a totally different deal; even the cam specs have to be altered for it to work correctly.

All of that aside, you still should have the head resurfaced. It's not about warpage, it's about surface finish. There is not a gasket manufacturer on the planet that will warranty a head gasket if the head has not been resurfaced. Period.

 

[69.5CUDA]

true..ill see about getting it dropped off this week

 

[Stretch]

Well I will be diving into a new antique car project soon. The guy who owns the '28 Oakland has 20 antique cars. He is dropping off this winters project tomorrow morning. Stay tuned.

Restoman, Your going like this one. I feel like a kid on Christmas eve.

 

[69.5CUDA]

your a bastard

 

[Stretch]

And your point is????

 

[thrashingcows]

I'm more then just a little curious, and envious....

 

[69.5CUDA]

so..ive been grabbing z50's cause i can actualy stay focused on them.......bought a pile of parts..3 frames and boxes of stuff almost enuf to build 3 bikes...while laying parts out to verify this..the first image happened..and thus named "happenstance"...my girl said i should build it..so i am...

 

[Stretch]

It's here! This one is going to be a lot of work with no set time frame to finish it. I will be doing a frame up rebuild including all of the mechanical and I am also redoing all of the wood structure. I will be leaving the metal work to someone who knows what they are doing. It needs a good bit of metal fab work for the body panels. I have never done any body work much less fab work.

Here are a few pics....

 

[restoman]

What is it?

I see the golf bag compartment and think Duesenburg, maybe Auburn... ?

 

[Stretch]

Its not a Duesenburg or a Auburn. It is a 1929.

 

[Stretch]

I have this little honey for it too.

 

[thrashingcows]

Was at a swap meet earlier this year and saw a roadster like that one. It even had the access/storage panels in the same location on the passenger side. Never could figure out what it was....still don't know from your pics.

Did some google image searching and still could not identify it. My guess is a mid 20's REO, Chrysler or Packard roadster? Can't be a ford, Chevy or dodge/plymouth...the cowl is too small on those car compared to that one. Plus that is a big flat 6 in there....so it would have to be a good size car.

 

[thrashingcows]

After your 1929 clue....I'm Gonna say a 1929 Chrysler Series 75 Roadster?

 

[Stretch]

Nope. But look close at the engine. That should help.

 

[69.5CUDA]

sure looks like a imperial to me...or a lincoln