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2.8 indy light prototype engine

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Old Oct 12, 2004 | 10:42 AM
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2.8 indy light prototype engine

i know about the ebay rule but im not selling this just thought you guys would be interested. search "Chevy 2.8 V6 Factory Prototype Indy Light Race Engine" on ebay and check it out. its got 6 side draft throttle bodies fuel injection, looks awesome, for 1200 bucks, might be worth it for the injection. anyway i hope this dosent get deleted, if anyone knows how to rephrase this to conform to the ebay rules be my guest. just wanted someone else to see this thing it is bad.
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Old Oct 12, 2004 | 10:45 AM
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Car: 1986 Firebird
Engine: 2.8 V6
Transmission: 700R4
Huh. Interesting. I wonder why they tack welded the core plugs?
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Old Oct 12, 2004 | 10:47 AM
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good eye i didnt notice that. i was in awe of the intake that would be awesome under 3rd hood.
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Old Oct 12, 2004 | 11:25 AM
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From: Orange, Calif
Car: '87 Cam RS V6
Engine: Top Secret
Transmission: DYT700R4 custom inerts and conv.
Ross, I'm inpressed, you are showing to be valueable around here. Thank you.

I sent the guy question about the possible "lack" of internals. I basically told him that its not rocket science to figure out and an honest straight forward answer will sufice. I told him to spin the crankshaft pulley by hand. If it spins freely then there is NO internals in it- I don't like games being played. And this $100 tear down charge to check is moronic I told him.

I have my eye on this and have to convince the wife within 6 days that I really really need it even though it won't be put on the car for years. I want that Falconer intake.
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Old Oct 12, 2004 | 11:32 AM
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Car: 86-FireBird
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Axle/Gears: 3:42
It is a tad fishy as he eludes to it having no internals and wants $100 to check. When in 30 sec a spark plug could be removed and he would know. Also it should turn over by hand to verify it has rods.
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Old Oct 12, 2004 | 11:37 AM
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i know he could have stuck a straw in the sparkplug hole even and saw how far it went, i mean its not that hard, and you are right again if he cant figure out if its got pistons and rods then i dont think 100 dollars or not i would want him taking it apart and or putting it back to gether. Yeah i just saw it and figured that there would be intrest here. no hard feelings about last night? I erased the post, i think i was just in a bad mood and looking for something to do and that kept me occupied till i was tired enough to go to bed. Any way i would love to see somones face when you pop the hood and that intake is sitting there, it would just look awesome.
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Old Oct 12, 2004 | 11:41 AM
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From: NWOhioToledoArea
Car: 86-FireBird
Engine: -MPFI
Transmission: T5
Axle/Gears: 3:42
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Old Oct 12, 2004 | 11:44 AM
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you would think they could have made better looking fuel rails
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Old Oct 12, 2004 | 11:49 AM
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From: NWOhioToledoArea
Car: 86-FireBird
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Axle/Gears: 3:42
I wonder what that is on the floor. An extension cord or a kinked up copper line run off the motor for something?
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Old Oct 12, 2004 | 11:52 AM
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i think that is for the crank trigger ignition
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Old Oct 12, 2004 | 01:38 PM
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From: surrey b.c. canada
Car: 89 Iroc
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nice, good find
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Old Oct 12, 2004 | 01:40 PM
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From: Houston
Car: 86 Berlinetta 84 MonteCL
Engine: 3.4 MPFI 3.8 229
Transmission: 700r4 T350
No hard feelings Ross (which is my middle name BTW =P). That Falconer intake is worth the money, Say Dean, If your wife lets you buy it......wanna sell your plenum???
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Old Oct 12, 2004 | 04:13 PM
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Car: '99 Trans Am, '86 Camaro
Engine: LS1, Scrap
Transmission: T56, T5
Axle/Gears: 3.42 Stock ZT, 3.42 Open
Re: 2.8 indy light prototype engine

Originally posted by ross0310
i know about the ebay rule but im not selling this just thought you guys would be interested. search "Chevy 2.8 V6 Factory Prototype Indy Light Race Engine" on ebay and check it out.
I make exceptions to the 'no-ebay' rule when something is otherwise next to impossible to find. So far, roots style superchargers for the 60 degree V6 are the only thing I've let pass... you're the first person to come up with something new that'll fly. Falconer intakes aren't common

BTW, folks, at a glance, I can tell you a cowl induction hood is going to be required to clearance the fuel delivery system.
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Old Oct 12, 2004 | 04:26 PM
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From: Tucson, AZ, USA
Car: '99 Trans Am, '86 Camaro
Engine: LS1, Scrap
Transmission: T56, T5
Axle/Gears: 3.42 Stock ZT, 3.42 Open
Falconer Intake, Driver Side
Attached Thumbnails 2.8 indy light prototype engine-28lside.jpg  
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Old Oct 12, 2004 | 04:32 PM
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From: Tucson, AZ, USA
Car: '99 Trans Am, '86 Camaro
Engine: LS1, Scrap
Transmission: T56, T5
Axle/Gears: 3.42 Stock ZT, 3.42 Open
Front view in slightly degraded quality to allow attachment.
Attached Thumbnails 2.8 indy light prototype engine-28_race_resize.jpg  
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Old Oct 12, 2004 | 05:12 PM
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I think you could fab up some new fuel rails out of some off a 3.4 or even a 3.1 or 2.8 that would come more at a 90 degree angle from the firewall and that would give you it looks like 4-6 inches more clearance. yeah i knew that the no ebay rule was there but i saw this and just thought it was too awesome to pass up.
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Old Oct 13, 2004 | 10:20 PM
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From: Ontario
Car: IROC Z
Engine: 5.7
Transmission: 700R4
this may be a dumb question but ever since ive seen this style intake on the early ferraris and old racers... where do the air filters go? no air filter?
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Old Oct 13, 2004 | 10:25 PM
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From: Houston
Car: 86 Berlinetta 84 MonteCL
Engine: 3.4 MPFI 3.8 229
Transmission: 700r4 T350
Originally posted by 85berlinetta2.8
this may be a dumb question but ever since ive seen this style intake on the early ferraris and old racers... where do the air filters go? no air filter?
That's affirmative. Most race motors don't use filters. My Spitfire has velocity stacks to use while racing, no filters.
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Old Oct 13, 2004 | 10:34 PM
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Transmission: 700R4
interesting
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Old Oct 13, 2004 | 10:40 PM
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i think if you were worried about the filters you could fab something up with some filter meidia and some say zip ties and then just cut it off for show or change, it would look like crap i know but it would work, till i think something else up.
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Old Oct 13, 2004 | 10:44 PM
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From: Houston
Car: 86 Berlinetta 84 MonteCL
Engine: 3.4 MPFI 3.8 229
Transmission: 700r4 T350
Originally posted by ross0310
i think if you were worried about the filters you could fab something up with some filter meidia and some say zip ties and then just cut it off for show or change, it would look like crap i know but it would work, till i think something else up.
I hear that. We use pantyhose at the track, works well enough. They make special bungee filters too i think.
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Old Oct 13, 2004 | 10:54 PM
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From: Orange, Calif
Car: '87 Cam RS V6
Engine: Top Secret
Transmission: DYT700R4 custom inerts and conv.
Guys, I have confirmed definately that IS the motor that was photographed on the cover of the Chev Power Catalog 6th Edition.

It does only have a crank in it. All the good internals have been removed and it was re assembled just for display. No cam, or valvetrain in it either. I am still debating getting this though. It is a jewel of a find being the cover engine. I would really like to know if those were the original heads they outfitter and tested that motor with. The heads have been at least removed and refitted because there ar exhaust valves in it, but no intake valves (I tend to think they just bolted on a pair of junk heads for the display.)

What puzzles me is why they left the rare exotic parts on it? It has the Falconer intake, the original custom built high flow waterpump, the racing dampner, the drysump pan and oil filter adapter. The is no FI computer or harness to go with the Falconer intake thought either, but the crank trigger is there.

The parts I listed above are worth the money to me, but I would really like to confirm if it has GM prototype fullyported heads and a worked crank if I am to get itno a bidding war and it go higher.

What to do, what to do- I have a few days to thing about it. I can't and won't be usiong any of this any time soon, but it would be nice to have this stuff packed away for future use on this car if it ever becomes a full time toy.

Last edited by vsixtoy; Oct 13, 2004 at 10:59 PM.
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Old Oct 13, 2004 | 11:03 PM
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From: Houston
Car: 86 Berlinetta 84 MonteCL
Engine: 3.4 MPFI 3.8 229
Transmission: 700r4 T350
Not sure what kind of injectors those are from pics Dean, If they are Bosch style you should be able to use the MPFI harness. If those are the GM prototype heads...All I can say is, WOW. I wasn't even thinking about the heads, but since you mentioned it... If by some chance they are, and you do come to own this one of a kind Gem, take some measurements on those heads (if you have time of course). Good Luck, and godspeed!
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Old Oct 13, 2004 | 11:04 PM
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so more or less the guy knew there was no pistons or rods and wanted someone to paypal him 100 bucks to tell them what he already knew, what a crock. how much power did they get out of it when they tested it back in the day with all the good stuff in it?
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Old Oct 13, 2004 | 11:07 PM
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From: Houston
Car: 86 Berlinetta 84 MonteCL
Engine: 3.4 MPFI 3.8 229
Transmission: 700r4 T350
Over 300hp if I remember correctly....a true marvel of OHV engineering. I'd let that motor have my child...*drools*
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Old Oct 13, 2004 | 11:15 PM
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From: Orange, Calif
Car: '87 Cam RS V6
Engine: Top Secret
Transmission: DYT700R4 custom inerts and conv.
I have heard from a friend of mine (Mike English) that GM was able to pump out almost 400 hp out of it. Thats why I would really like to know if the head ports are still married to the intake. I am very certain they just fitted stock or at least a junk pair of racing heads back onto it.

For those that aren't familiar with Mike English, he use to bee the head parts guy at Cone Chev in Fullerton Calif up to about 10 years ago. They use to sponsor me racing my Vette an a few times kept it in their showroom nice and waxed up for us. Mike IS the leading expert in over-the-counter GM parts for hot rod applications. It use to drive the McPherson guys nuts because the McP always tried to be the top performance dealer in the US. However, Hot Rod Magazine would come to Mike and have him write tech article quite often for the magazine. I was just working with Mike last weekend at Thunderfest. We hadden't seen eachoother for over 10 years.
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Old Oct 13, 2004 | 11:17 PM
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were the prototype heads, just stock castings that had extensive work done or were they diffrent castings?
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Old Oct 13, 2004 | 11:19 PM
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From: Orange, Calif
Car: '87 Cam RS V6
Engine: Top Secret
Transmission: DYT700R4 custom inerts and conv.
just stock castings that had extensive work done
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Old Oct 13, 2004 | 11:24 PM
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was that motor stroked, im assuming they overbored it, and if they stroked it did they have to clearance the block any if you know. im just curious about this set up as that i have never heard of it before. but theres no way im bidding on it, id get kicked out of the house,lol.
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Old Oct 13, 2004 | 11:26 PM
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From: NWOhioToledoArea
Car: 86-FireBird
Engine: -MPFI
Transmission: T5
Axle/Gears: 3:42
There is a guy at firebirdv6.com shooting off his mouth that that intake set up is not worth the price of the auctioin and he could easily build the whole thing for less than a $1000.
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Old Oct 13, 2004 | 11:30 PM
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tell him to build them and sell them for 1000 and if he makes a profit at all im sure that tons of people would buy them if they were quality parts at all, and not an advance auto knock off.
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Old Oct 13, 2004 | 11:32 PM
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From: Houston
Car: 86 Berlinetta 84 MonteCL
Engine: 3.4 MPFI 3.8 229
Transmission: 700r4 T350
Originally posted by ross0310
was that motor stroked, im assuming they overbored it, and if they stroked it did they have to clearance the block any if you know. im just curious about this set up as that i have never heard of it before. but theres no way im bidding on it, id get kicked out of the house,lol.
Actually, I think this is the DE stroked one....2.5 L I think (?). There have been a few posts about this motor.
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Old Oct 13, 2004 | 11:52 PM
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So i guess that would rule out the block clearancing, and i bet that would raise the redline too im betting 8 grand, balanced and blueprinted.
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Old Oct 14, 2004 | 12:08 AM
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From: Orange, Calif
Car: '87 Cam RS V6
Engine: Top Secret
Transmission: DYT700R4 custom inerts and conv.
It was bored and stroked to the max fo a 2.8 block. Main bearing caps were reinforced major. There was a whole lot of welding to strengthen the block & heads to give extra meat for porting and strentgh. The motor turned over 10K.

My final assumption (I have extra pictures he sent me) is that it is NOT the original block, crank or heads on the motor. Those are just decoy units that the trick externals were fitted to for display purposes inside GM's lobby for years. Someone took the good long block assembly and used it for something else- its gone. This "display motor" is the exact dummy engine used for the cover shot of the Power Catalog.
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Old Oct 14, 2004 | 12:15 AM
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From: Orange, Calif
Car: '87 Cam RS V6
Engine: Top Secret
Transmission: DYT700R4 custom inerts and conv.
Here's a shot of the heads with the valve covers off. Missing the intake valves. Those heads have been removed and replaced with generic heads for display. Crank spins freely- I have proof. A cheap crank was re fitted so they could mount the pulleys for dry sump pump in the display
Attached Thumbnails 2.8 indy light prototype engine-rh_head.jpg  
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Old Oct 14, 2004 | 01:07 AM
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From: Houston
Car: 86 Berlinetta 84 MonteCL
Engine: 3.4 MPFI 3.8 229
Transmission: 700r4 T350
Drat...so basically, you only get the bitchin Falconer intake....
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Old Oct 14, 2004 | 01:44 AM
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From: surrey b.c. canada
Car: 89 Iroc
Engine: lb9
Transmission: wc t-5
Axle/Gears: 10 bolt 3.08 posi
hmm, that intake is sweet though
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Old Oct 14, 2004 | 05:18 PM
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Car: 1987 Firebird Formula
Engine: 3.4L 207 V6
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Originally posted by Gumby
There is a guy at firebirdv6.com shooting off his mouth that that intake set up is not worth the price of the auctioin and he could easily build the whole thing for less than a $1000.
Actually, that would be me. That intake is nothing without the original heads. I would much rather spend the money on the heads, not the intake. If you could verify that the motor comes with the original heads, that would be one thing. Without them, it would be a waste of time and money.
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