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vortec
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  1. Engine
    Hello I have a stock bottom end 89 350 tbi crate motor with a comp cam 280 magnum camshaft it has 230 duration at 0.50, .480 lift, and 110 Lsa. I just bought 906 vortec heads that have been milled to 56cc combustion chambers and have z28 valve springs for a max lift of .525 the studs have also...
  2. Engine
    Ok, after 3 or 4 years I'm back with more camshaft questions. Vehicle: 1992 Chevy SWB standard cab The truck has 3.42 or 3.46 differential...not sure which but one of those. It's running a 700R4 transmission Here's my engine in a nutshell: It's a 1998 Vortec 350 that I've converted from fuel...
  3. Hotrodding Basics
    I have a ZZ4 Short block I am building for my truck with a Vortec blow throw supercharger with holley's super sniper EFI at 5 pounds of boost. trying to get close to 9:1 Compression to run on 91 octane. can someone help me calculate the Compression I will have with my current setup? I have...
  4. Engine
    Looking for help in a few things for a first build. Hoping for 350 hp and a flat torque curve of 350 or more if possible with a static cr of 9.0-9.5 on cali 91 pump gas working below 6k rpm (5500 is possible). I have a free set of vortec heads that need a good cleanup and valve job that ill be...
  5. Fuel injection Engines
    I have a 1995 350 5.7 TBI and I want to put it into a 1997 GMC 1500 Truck that had a Vortec engine. Will it be a compatible swap?
  6. Hotrodding Basics
    Im looking for some thoughts on putting vortec heads on my 1987 Pontiac Firebird 5.7 tpi. After looking around I found that I wouldn't be able to run the stock intake manifold because of the vortec bolts being different from the current swirlport heads. I couldn't find a conversion for under...
  7. Introduce Yourself
    Hey everyone. My name is Sebastian. I'm 23 and I'm from Canada. I have a 1970 Pontiac Lemans Sport 4DR. Now? It's got a 2006 5.3L 325 Vortec, 2001 Harness & PCM/Intake Manifold/Sensors. Stock everything.. for now. It's got a 2012 Toyota Camery dash. 2010 Dodge Charger Center console, 2010 Chevy...
  8. Introduce Yourself
    Hello Hotrodders, thought I would finally join this forum. I have learned a lot from reading here over the course of an engine building project I was working on on my S10. The engine is a Gen 1 350 block, given to me by a friend when my 4.3 (L35) broke down. I decided it would be more fun to...
  9. Fuel injection Engines
    I'm sure this problem has been reported before, but I have had trouble finding it. (perhaps I am searching wrong, but who knows) My daily driver, an 06 k1500 with a 5.3 and throttle by wire, has has this problem since I bought it three years ago. It started as a simple throttle oscillation...
  10. Engine
    Looking for original Specs in technical information on the fallowing casting number and partial engine id Casting Number :10243880 Engine ID: 1M0823 8P04. the fallowing is what I've come up with (not sure if accurate) It's a Small Block Chevy block built in Mexico somewhere near August (or...
  11. Engine
    Hi guys, we pulled out the engine on the 1996 Yukon. L31 Vortec SBC, We were doing the top end only but we decided to go with a full rebuild. We already have some parts for it. 1 - 0912 AFR Heads 2 - LT4 Hotcam 3 - 1.6 Crane Cams Gold Race roller rockers 4 - 3600 Yank Torque Converter. We...
  12. Hotrodding Basics
    block is a 1969 010 350/355 .30 over summit brand pistons( Hypereutectic Pistons SUM-17350-30) stock but new 350 crank. cloyes timing chain SUM-G2600 summit gasket kit comp cam 280h Duration 280/280, Lift .480/.480 lobe 110 vortec heads 12558062 (#062) specs unknown but they are stock...
  13. Engine
    Getting ready to order my cam for my SBC build. It's a 350 with somewhere around a 9:1 - 9.5:1 compression ratio. Cast iron Vortec heads that will be modified for higher lift. Edelbrock Performer RPM Vortec intake, Holley 750 vacuum secondary, longtubes, free flowing short dump exhaust. The car...
  14. Engine
    I pulled a set of vortec heads off of my 1996 k1500 vortec 350. I plan to use them in a moderate build of a different 350 that will be getting edelbrock performer rpm intake and carb. I'd like to throw a cam in it too, and I heard that vortec heads have some restrictions as to the lift they can...
  15. Engine
    I am looking to get the valve guides (and I think I need the spring seats cut also (never delt with heads before)) on my vortec heads to handle a higher lift. What is a rough estimate of a fair price I should be willing to accept? I've never delt with a machine shop before so I wouldn't know...
  16. Engine
    I just wanna first say hello to everyone as I'm new to the forum. I've searched around and found a little info here and their, but felt I still should just post and ask. My daily driver is a 1984 Chevy Caprice Classic Wagon. Stock. 4100lbs. Computer Command Control QJet 305 sbc. 700R4...
  17. Engine
    hey guys, tried searching on here for this problem, really didn't come up with much, except I did hear a few guys mention clearancing the rocker. My problem in a nutshell... I know my max lift with 1.6 rockers should be .525 without even dealing with the pushrod (another topic), the back of...
  18. Engine
    And after months upon months, I have officially nickeled and dime'd my way up to the big leagues! I bought a pair of 062 Vortec Heads! I have a completely stock 1991 350 tbi with long tube headers and true duals with Flow master 50's on it.... My believed compression ratio with the tbi heads are...
  19. Engine
    OK I'm turning to the board for information. I have a 327 with 906 vortec heads. I want to use stock exhaust manifolds. This engine has a 600 CFM carb. (1406) What OEM part numbers will work? What exhaust manifold part numbers hooked up to the 906 heads? Please help.
  20. Engine
    I have a 1997 Chevy 1500 350 vortec. I want to swap the original cam with a better one without doing any engine work. I have a 350 that I spun a rod bearing so I ordered a short block. I am using the original heads, what cam can I use? I believe I can use an lt1 cam but I don't remember which...
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