Turbo Chevy Inline 6 250 - Chevy Nova Forum
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Old 20th-January-2009, 03:02 PM   #1
bluenova667
 
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Talking Turbo Chevy Inline 6 250

Here are a few pictures of my turbo I6, these are only test fit pictures to make sure everything was fitting alright. Also the turbo manifold you see pictured here will not be used, i am making a custom stainless steel one that will clear the shock towers in the engine compartment. This may fit on a later nova but i know a 67 and 66 is out..I still need to machine assemble and paint the block and do some other things...here are the pictures and engine specs...






Chevy Inline Six Build Up-TURBO

Engine: 250 I6 Chevy o Ringed
Block Details:
Bore: .060 over
Bore: 3.935
Stroke: 3.530
Compression: 8.5:1
CID: 258
Camshaft: Crower
Cam # E-68061

Duration- Intake: 286 degrees Lift: .679 Clearance: .026
Exhaust: 280 degrees Lift: .655 Clearance: .028
Lobe Separation: 114 degrees
Duration@ .50 IN: 254 degrees Lobe Lift: IN: .388
EXH: 247 degrees EXH: .374
Water pump- GMB North America
GMB-130-101P
Thermostat: EMP-300-160 degrees by STEWART
Housing: CSR Aluminum
Rockers: Crower Enduro Roller 1.75 ratio 3/8
Lifters: Comp Cams roller lifters
Lifter covers: PES Aluminum covers
Springs: Crower: open 600 lb
Close 220 lb
Retainers: ?
Head: 75CC Gm Head Lump Port?
Head Gasket: SCE Pro Copper gasket with o rings
Valves: Stainless steel INT: 1.940
Stainless Steel EXH: 1.600
Connecting Rods: SCAT- SCA-66000206a 4340 h beam 12 point cap 6.000 in length
Pistons: Ross? CP? Je?
Crankshaft: Stock
Oil Pump: M-62HV High Volume melling
Oil Pan: Track pan made from steel
Oil pain studs: Stainless Steel ARP
Head Studs: ARP Studs
Main Cap kit: ARP
Intake: Clifford Aluminum 4 barrel
Carburetor: ?
Turbo Manifold: Custom Welded manifold
Turbo: T3 AR70 with 84 AR turbine
Wastegate: 16lb race products
BOV:53 mm
Distributor: MSD 8515 magnetic
Ignition: MSD 6ALBTM
Valve Cover: Sissell sheet metal- aluminum
Stud girdle: Kirby SIssell
Gaskets: High performance from napa
Bearings: not yet determined
Timing cover: MR hotrod Aluminum
Fuel Pump: Aeromotive SS Electric
Fuel Regulator: Aeromotive 13301 boost reference regulator
Fuel block off plate: Aluminum
Oil system adapters: Hamburger
Damper: Inovators West internally balanced
Flywheel: Reactor products

Last edited by bluenova667; 9th-November-2011 at 11:49 PM.
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Old 20th-January-2009, 04:16 PM   #2
ryan9815
 
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That looks awsome! Whats it going into?
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Old 20th-January-2009, 10:35 PM   #3
bluenova667
 
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4 door

a 1967 4 door i haved posted a couple of pictures under my other pots...hopefully it will speed it up a bit
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Old 20th-January-2009, 11:16 PM   #4
Vin63
 
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That's way cool! I would actually prefer the cast iron turbo exhaust manifold. Keep up the great work!
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Old 23rd-January-2009, 10:54 AM   #5
bluenova667
 
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manifold

i wish i could use it but it wont fit my 67 it hits the shock tower
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Old 23rd-January-2009, 11:08 AM   #6
bluenova667
 
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Inovators west damper

Here are a couple of pictures of my innovators west damper i had custom made along with the mandrel, the mandrel is long but i can be trimmed down to the desired length.









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Old 23rd-January-2009, 06:37 PM   #7
BigMike
 
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That oil pan is Killer! Looks like a road race pan. Does it fit in the chassis ok?

BigMike
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My '71 Build pics:

http://photobucket.com/engine71
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Old 23rd-January-2009, 07:40 PM   #8
tnblkc230wz
 
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That looks pretty cool. Nice, big turbo. Is the turbo output covered up by the intake?
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Old 24th-January-2009, 02:39 PM   #9
novaboy009
 
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Looks like you need to spin the compressor housing so you don't hit the intake as was just noted. Most turbo housings come apart, but it's a pita because they use a huge snap ring that is too big for most readily available pliers.

Kev
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Old 25th-January-2009, 01:09 AM   #10
bluenova667
 
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turbo

yes it is, ive already had it apart once to change the angle but i am waiting till i finish my stainless steel exhaust manifold before i change it again....i only want to take it apart as few times as possible
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Old 28th-January-2009, 02:20 AM   #11
bluenova667
 
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oil pan

Quote:
Originally Posted by BigMike View Post
That oil pan is Killer! Looks like a road race pan. Does it fit in the chassis ok?

BigMike
well thats a good question i hope it fits...im using a cpp mini sub frame and then im going to purchase the church boys rack and pinion...so i should not have to many problems but we will see....
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Old 12th-February-2009, 01:39 PM   #12
bluenova667
 
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con rods

Finally got my SCAT h beam connecting rods in, they have been on back order for awhile i will post a picutre later.
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Old 12th-February-2009, 02:28 PM   #13
LIL NOVE
 
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DAM, u beat me to it!!! i so wanna do a blowthru I6 in my 63 SS, just so i keep the OG motor . have u done ur research, how much can these I6 handle or more like how power are u expecting from it. im definitely subscribing to this one, keep it up & the pics coming...

JOHN
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Old 12th-February-2009, 03:53 PM   #14
bluenova667
 
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turbo six

Yes ive dont alot of research for this build up. It is very difficult to find parts for this build. I have found that the cast iron manifold pictured in my post does not fit a 1967 nova, it may fit a later model that has a bigger engine bay. Right now i am in the process of welding my 304L schedule 10 stainless steel turbo manifold that will fit on a nova.

I just had SCE build me a custom pro copper head gasket to handle the boost and also have received the stainless steel o ring kit for the block as well. In terms of my cam it is kind of experimental as it will be a higher RPM turbo motor which is not always needed.

Talking about power i expect at least 400 hp or more, all the experts i have talked to say it should be that but i wont count on it till i see it.

If your looking for serious power and reliablility custom parts are the way to go, its just difficult finding the people that make them. Feel free to ask any questions as i have been working on this for a year or more and i may have contacts that you would require.

Good luck
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Old 12th-February-2009, 03:56 PM   #15
bluenova667
 
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power

Quote:
Originally Posted by LIL NOVE View Post
DAM, u beat me to it!!! i so wanna do a blowthru I6 in my 63 SS, just so i keep the OG motor . have u done ur research, how much can these I6 handle or more like how power are u expecting from it. im definitely subscribing to this one, keep it up & the pics coming...

JOHN

sorry forgot to answer your power handleing question, well i feel the stock block can handle 400 to 500 with the proper modifications such as all ARP studs, Stong connecting rods, ARP main cap kit. Then if you want more you and have stainless steel sleeves installed which could allow you theoretically to get 1000 hp out of one of these with extensive mods.
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