I had worked at Hank the Crank in ca and we did build Flat cranks for guys like Ryan Faulkner race engines and Traco and Chaparral. The crank u have looks like a billet to me with center counter weights. If to check on the front counter weight it will tell u the stroke and both rod and main sizes if it’s a HTC crank. Also looks like a Avaid oil pan Weaver Dry sump and Norris stainless steel rockers and maybe BBC push rods. All the people I mentioned were in the Los Angeles area. As far as “0” dash # goes the parts that I have from Jenkins had the part in there box an the new GM # after the 0
N

Thanks Stefs,

That is some great info. I have already stashed the engine back in its spot. I will check the front throw for stampings next time I’m near it. I looked it over pretty closely earlier but could have missed something. I’ll have to tear it down at some point anyway. I’m torn about what to do with it. It is a cool piece as it is but could also be great with a larger bore and stroke.

Thanks,

Jason

This engine is iron head and block but sounds like a similar build

Smokey Yunick Twin Turbo Indy Chevy built for his 72-74 stock block Indy run. Only stock block turbo to qualify in that period. Received Indy engineering award in 73. 205 cubic inch, reverse rotation, 180 degree flat plane crank. Easy converted to std. rotation. Made up to 1300 hp per Smokeys Indy Book. Smokey refreshed and checked in mid eighties. Stored since. Long Block with Intake,headers,distributor,available with turbos, wastegates,dry sump pump etc.

Technical Data
Engine
Engine Builder: Smokey Yunick
Manufacturer: Chevrolet
Type: turbo indy chevy
Displacement: 205 ince
Horsepower: 1300@90inchs
Induction: twin plenum turbo with remote wastegates at turbo inlet
Heads: yunick iron with extensive weight removal Ported and flowed
Block: iron 4 bolt with weight removal
Crankshaft: custom 180 flat crank
Pistons: forged custom

Thanks for that Joe... I knew Yunick built a 200"ish" CUI indy engine. You saved me the trouble of trying to find the specific info.

Thank you guys. I believe this is the same engine as the one being discussed above:


https://www.museumofamericanspeed.co...twinturbo.html


Jason