Porschevy Engine ?, never thought this was possible |
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Porschevy Engine ?, never thought this was possible |
yarin |
Jun 5 2003, 10:38 PM
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#1
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'14-X'in FOOL Group: Members Posts: 988 Joined: 13-May 03 From: Guttenberg, NJ Member No.: 693 Region Association: North East States |
2.0L case
2.0L heads Chevy V8 pistons and cylinders (105mm) 2.5L final displacement 8-8.5:1 compression P&P, 3 angle. Has anyone ever heard of a Type IV with mixed components like this? This means the engine wasn't stroked, only bored. I'm assuming with a thicker cylinder wall heat dissipation won't be as bad as an original bore only 2.5l type IV. Comments? http://www.strictlyvw.com/ built this engine. I know that a LOT of machining must have gone into this. |
LvSteveH |
Jun 6 2003, 09:31 AM
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#2
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I put the Poor in Porsche Group: Members Posts: 1,080 Joined: 22-April 03 From: Las Vegas, Nevada Member No.: 600 |
I wish this topic came up a week ago. I just traded off an engine I've had for a couple years. It was a 2580 type 4, had a stock case, opened up to accommodate larger pistons, 1.8L heads ported and polished with 38mm exhaust and 48mm Intake valves, 76mm stroke on a stock 2.0L crank that was reworked and fully counterweighted, 104 or 105mm TRW forged chevy 350 pistons in Biral (forged aluminum finned) cylinders. It ran with dual weber 44's. I know it was built some time ago, and when I got it, it ran, but needed a rod bearing, so I disassembled it and put everything into boxes awaiting a rebuild. The crank and rod setup were a bit crude. The rods were stock 2.0L that were ground at the base for clearance, all the way up into the rod bolts, and a substantial amount was taken out of the bolt heads for clearance. Didn't look pretty at all.
Of course everyone knows that a big type 4 can cost $6-7K easily, so I thought I hit the jackpot, but the more I saw the stuff from Raby’s Aircooled Technology and other high end builders I doubted the integrity of the engine. It should have produced around 200hp easily. I’m a bit of a perfectionist and that got the better of me, I traded it off for a few boxes of nice 914 stuff like seals, lenses, mirrors, a set of old weber 40’s, and such a few days ago. After doing the math, I probably didn’t come out that great, I’d guess around $1200-1500. In hindsight, I should have kept the case, cylinders, heads, and carbs, got a new crank and rods and properly clearanced the case. Then I would have had a pretty nice engine for around $3000 based on the value of what I traded it off for. Such is life. I don’t know if that helps you much, but at least it does confirm that such things exist. Good luck. (IMG:style_emoticons/default/wacko.gif) Steve |
seanery |
Jun 6 2003, 10:30 AM
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#3
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waiting to rebuild whitey! Group: Retired Admin Posts: 15,841 Joined: 7-January 03 From: Indy Member No.: 100 Region Association: None |
one question....where did they get the cylinders? Chebby's are built into the block.
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aufaber |
Jun 6 2003, 10:53 AM
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#4
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Member Group: Members Posts: 190 Joined: 7-April 03 From: Huntington Beach, CA Member No.: 525 |
Odd.. chevy 350's have a 4" bore which is 101.6mm.
-Aaron G> |
Mueller |
Jun 6 2003, 11:46 AM
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#5
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914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None |
Brad has (or had) two 2.3+ liter /4's...they had aluminum cylinders (Mahle I am pretty sure was cast on them)
So I am guessing that modified 911 /6 cylinders can be used. |
Aaron Cox |
Jun 6 2003, 04:47 PM
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#6
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
i think bernie bergmann vw mixes chebby components with vw type 4 stuff. i have heard of mixing journals and rods....i dunno how you take the cylinders
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airsix |
Jun 6 2003, 04:54 PM
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#7
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I have bees in my epiglotis Group: Members Posts: 2,196 Joined: 7-February 03 From: Kennewick Man (E. WA State) Member No.: 266 |
QUOTE(acox914 @ Jun 6 2003, 02:47 PM) ....i dunno how you take the cylinders Corvair? |
LvSteveH |
Jun 6 2003, 05:46 PM
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#8
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I put the Poor in Porsche Group: Members Posts: 1,080 Joined: 22-April 03 From: Las Vegas, Nevada Member No.: 600 |
Of course “Chevy 350” pistons can be purchased in a variety of overbore sizes, such as .020, .030, all the way up to .080 I believe. I just looked up the specs, my pistons said TRW and JE230 on them and measured 104mm. That coupled with the 76mm stroke netted 2580cc’s. I don’t know who made the cylinders, but they were beautiful, very thick steel walls, approaching ¼ inch, and heavy 1/8 forged aluminum fins that were very clean and sharp, like you see on some racing engines. All this talk is making me wish I didn’t trade it off, maybe I could get it back, what would I have to give up? Hmmmm
Steve |
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