hint: who made the best 175 c.i. four cylinder ever?
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hint: who made the best 175 c.i. four cylinder ever?
I thought that at first, but why would they mess with a finned faux cylinder head? Is it air cooled and the other 4 cylinders are the pump?Quote:
Originally Posted by agjohn02
I don't have enough trivial engine knowledge to tell you what it is, but this is what I notice. No plug wires on pass side. Blocked off thermostat mount. Weird linkage and hose where water pump "should" be. No header on drivers side. what appears to be two cast iron pipe fittings.
the exhaust is on the side without plugs...
I'm gonna go ahead and mention some observations, even though it seems John is just toying with us. :flipoff2:
The braided hose with the throttle cable where the water pump should be is probably a cam driven fuel pump.
It does look like the passenger side is water cooled, with one hose connected to the original water pump port on the passenger side and then the "Rowdy hose" just below the valve cover in the head is the water outlet. I've seen this done before on some race cars.
I think there are spark plug wires going to the passenger side, you just can't see them because they are behind the injectors and the valve cover.
My overall guess, partly from John's hint, is it's a 350 smallblock that's been converted to run on the passenger side four cylinders for some unGodly reason (I guess to be "original", but why would you want the extra weight?) and the flathead is just there to cover the empty holes on the driver side.
Thank you, good night.
edit:I could maybe see running only four cylinders so that he could fit into a four cylinder class....but still you've got half of a smallblock chevy riding around with you as dead weight.
well, the flat head looks to be stuck on top of an aluminum head on the pass side.
are the exhust headers shoved through the block or something.
I know, it's a Rube Goldberg designed engine!
I'll look again.
that engine is dumb...reminds me of karl's Dad's hit and miss motors...probably makes a lot of noise and no power.
Quote:
Originally Posted by mudtoy67
Right on! GM made the best 175 ci 4 bangers ever, they just sold them in pairs.
Notice the mounting plate for the drivers side of the manifold that also blocks the coolant crossover in the manifold. At first glance from the drivers side I thought, "Cool, how did he get chevy fuel injection on that flathead?" Then I noticed the plate, the lack of exhaust and then the oddities started pouring in. The SBC head and valve cover and the distributor is in the wrong place. Then it dawned on me that he just capped the empty side with a flathead and put on faux wires.
The "Rowdy hose" is a crankcase vent, but you are referring to the correct hose for cooling. Theres no coolant crossover to the other side due to the lack of a water pump and the blockoff plate, so he tapped a hole into the head to circulate coolant through only one side of the engine.
Weight is of no real concern at Bonneville since you have a mile to get up to speed. As for how it runs, I never heard it, but its one way to get SBC power in a smaller displacement class, that's for sure.
One thing it took me a second to figure out was why the driver's side throttle body linkage was hooked up, then I realized the passenger side is connected to the driver's side so he just operates both of them but no air flows through the driver's side TBs.
Here's what I want to know. Obviously you wouldn't want to run connecting rods and pistons on the side not doing anything, so riddle me this. Is it a custom made crank that only has provisions for 4 connecting rods, and oiling for only 4 rods? Or do you think he took a normal crank and built some sort of crank sleeves to go where the other 4 connecting rods would be on the crank to take up the space and cover the oiling holes to allow it to oil the other 4 rods?
John, what was the builder's name? Did you XXX it out because you couldn't remember, or you didn't want people using google to try and figure out the motor?
I don't think spacers would be that big of a deal. 2 connecting rod caps bolted together would probably be close enough tolerances to act as a spacerQuote:
Originally Posted by Fredo
I might be missing something, but wouldn't this be an oddfire?
0=====1
90
180
270===3
360
450===5
540===7
630
I'm sure he reconfigured the timing...right?
Quote:
Originally Posted by robertf03
The cam could be custom made to change where each cylinder fires (you could only swap between it's stock position and 360° out), though I couldn't come up with anything that didn't have two cylinders firing right next to each other.
Here's a thought I had though....I got to thinking what 4 bangers GM made that were similar, and found the old 2.5L GM Iron Duke (151cu in). Evidently these were based on an older pontiac 301 V8 engine....same bore and stroke only with half the cylinders. The head of the Iron Duke and the SBC are swappable, so I wouldn't be surprised if general motors kept similar dimensions for other components of the Iron Duke. I can't find any specs on the crank itself, but I have come across some racing engine manufacturers that refer to the crank journal diameter of the Iron Duke in their V8 and LS1 applications. If the journals are the correct distance apart, I bet he just threw in an Iron Duke crank. :lightbulb:
Quote:
Originally Posted by Fredo
I Xed it because I didnt recognize it and therefore don't remember it.
I know nothing of the firing order or crank, but yes, I think spacers would suffice to make it work with a stock crank. How well? I dont know. He's probably not too worried about NVH.
He may not be into record setting. He might just be out there to run vintage stuff and have fun.
Quote:
Originally Posted by robertf03
I don't know flem, but what I do know is our idea for our drug running IH engine is looking smarter and smarter! :gigem: