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Finding rockers?

This is a discussion on Finding rockers? within the V6 forums, part of the Vehicle Specific category; What do you look for on roller rockers, besides stud size and ratio, to match them for you car? I ...

  1. #1
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    white
    1995 Firebird

    Finding rockers?

    What do you look for on roller rockers, besides stud size and ratio, to match them for you car? I want to get a set for my '95 'Bird with the 3.4 V6, and as everyone knows that has the 3.4, it's a pain in the ass to find performance parts for. I know that for an N/A build, you probably wouldn't want to go over 1.6 or 1.65, but has anyone used a 1.7 roller rocker on an N/A with success? If you have non-self aligning rockers, must you replace them with non-self aligning, or can you replace them with self aligning rockers?

  2. #2
    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
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    Question

    Quote Originally Posted by davidlb512 View Post
    What do you look for on roller rockers, besides stud size and ratio, to match them for you car? I want to get a set for my '95 'Bird with the 3.4 V6, and as everyone knows that has the 3.4, it's a pain in the ass to find performance parts for. I know that for an N/A build, you probably wouldn't want to go over 1.6 or 1.65, but has anyone used a 1.7 roller rocker on an N/A with success? If you have non-self aligning rockers, must you replace them with non-self aligning, or can you replace them with self aligning rockers?
    Self aligning rockers?? What "roller rockers" are you talking about?? They made forged cranks, cams, forged rods, pistons, for the 3.4L single cam.. Where are you looking for parts?
    Last edited by Smittro; 06-03-2010 at 08:37 PM.
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  3. #3
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    1.7's are the same as the 3.1L high valve rockers except the 3.1l does'nt always use roller rockers.. You wont be able to use high valve rockers on your motors heads.. Best you can hope for on you heads is a 1.6 roller top..
    Last edited by Smittro; 06-03-2010 at 09:08 PM.

  4. #4
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    some 3.1's use self aligning rockers.. You motor has regular crankem downs.. Your heads require crankem downs..
    Last edited by Smittro; 06-03-2010 at 09:17 PM.

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    what are your goals with the motor? What are you trying to get out of it?

  6. #6
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    WHat you can do.... If you want the 1.7 rockers is....

    2004 3500 heads, 1995 3100 pushrods.. Push rod guides must be modified to fit, 2004 LS6 GTO valve spring, 3400 pistons 1.7 ratio roller rockers from a Ford small block.

    Or use 3500 heads rockers push rods..Both will require different injectors than the 3.4l iron head...
    Last edited by Smittro; 06-03-2010 at 09:54 PM.

  7. #7
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    1995 Generation 2 engine ends production in all cars.
    Some 3100 engines had self aligning rocker arms
    Plastic valve covers replaced with aluminum


    1996 Lumina APV Minivan ends production along with the 3.1L FWD iron head motor
    3400 introduced in some models with an increased intake valve (1.76") and D shaped exhaust port for increase flow.
    OBD II computer system introduced
    Full roller valve train introduced with roller fulcrum rockers and non adjustable preload
    Self aligning rocker arms
    Horsepower 185 (3400 only, varies slightly between models)
    Torque 205 (3400 only, varies slightly between models)
    Compression ratio 9.6:1 (all motors)
    RWD engine ends production in all vehicles
    Compression increase to 9.7:1.
    Different camshaft profile
    Different head design
    Different Intake manifold design
    Different Exhaust Manifolds
    OBD II computer system introduced

    1997 No changes


    1998 No changes

    3.4L DOHC engine ends production

    1999 No changes

    Gm Performance Parts division releases the 3.4L HT crate engine. Designed to replace tired 2.8L engines in S-10 trucks. Engine features larger oil pump, better cam design, stiffer springs, revised retainers and increased displacement over the 2.8L
    Horsepower 160
    Torque 194

    2000 All engines now use the same 1.76" intake valves
    Valve guides increase in size
    Cam sync ring is now "single tooth design"


    2001 Intake Valley Baffle
    Modified Lifter Guide
    More Durable Water Pump
    Improved Bearings for Accessory Drive Belt Tensioner and Idler
    High-Resistance Spark Plugs and Wires
    Revised Throttle Body New Starter Motor
    Sleeveless Coolant sensor
    On-Road Vapor Recovery (ORVR) System for Montana and Aztek
    Specific Oil Pan for Montana and Aztek
    Revised Powertrain Control Module (PCM) for Aztek

    2002 No changes


    2003 Revised Crankshaft Bearing
    Revised Cylinder Heads
    Revised Pushrods
    Revised Camshaft Journal
    Improved Water Pump
    Iridium Spark Plugs
    Maximum Oil Change Interval Extended
    Improved Starter Solenoid
    Some models have no AIR
    Cam sync ring is a 50/50 pattern of raised and lowered semi circles

    DOHC Global FWD Engine DOHC Global RWD Engine

    2004 3500 introduced in the Malibu 94mm bore, 84mm stroke
    Graphite Head Gaskets
    Improved Water Pump
    Improved Sealing
    Improved Flywheel
    3100 and 3400 receive changes for common assembly with 3500 High Value V-6
    3400's saw improved cam bearings, improved starter for minivans and sport-utility vehicles, more efficient catalytic converter and improved bearings
    Horsepower 200 (3500 only)
    Torque 220 (3500 only)
    Compression ratio 9.8:1 (3500 only)

    3.6L Displacement
    Completely new design introduced in Buick Rendezvous Mounted transversely (like a FWD engine) yet powering an AWD drive train.
    Aluminum engine block & Cylinder Heads
    Four Cam Phasing
    Full chain drive valvetrain system
    Aluminum Pistons With Floating Wrist Pins & Oil-Jet Capability
    Forged Steel Crankshaft
    Sinter-Forged Connecting Rods
    Structural Aluminum Oil Pan with Steel Baffles different from RWD version
    Dual-Stage Variable Aluminum Intake Manifold
    Advanced Sequential Port Fuel Injection
    Electronic Throttle Control with Integrated Cruise Control
    Coil on Plug Ignition
    Engine-Mounted Micro-Hybrid Engine Control Module
    Optimized Exhaust Manifolds with Closed-Coupled Catalytic Converters
    Fully Isolated Composite Camshaft Covers
    Outstanding Noise, Vibration and Harshness Control
    Horsepower 245
    Torque 235
    Compression 10.2:1
    3.6L Displacement
    Completely new design introduced in Cadillac's
    RWD in CTS
    RWD or AWD in SRX
    Aluminum Engine Block & Cylinder Heads
    Four Cam Phasing
    Full chain drive valvetrain system
    Aluminum Pistons With Floating Wrist Pins & Oil-Jet Capability
    Forged Steel Crankshaft
    Sinter-Forged Connecting Rods
    Structural Aluminum Oil Pan with Steel Baffles different from FWD version
    Dual-Stage Variable Aluminum Intake Manifold
    Advanced Sequential Port Fuel Injection
    Electronic Throttle Control with Integrated Cruise Control
    Coil on Plug Ignition
    Engine-Mounted Micro-Hybrid Engine Control Module
    Optimized Exhaust Manifolds with Closed-Coupled Catalytic Converters
    Fully Isolated Composite Camshaft Covers
    Outstanding Noise, Vibration and Harshness Control
    Horsepower 255 (Cadillac CTS only)
    Horsepower 260 (Cadillac SRX only)
    Torque 252
    Compression 10.2:1

    2005 Long relief A500 upper and lower thrust bearing (3100 only)
    Exhaust manifold and gaskets (3100 only)
    Revised throttle body gasket material (3100 only)
    Modified fuel rail assembly to implement the "shrouded tip" Multec 2 Injectors (3100 only)
    7.5 watt, post-converter oxygen sensor (3100 only)
    New application in 2005 Chevrolet Equinox (3400 only)
    24-X encoded crankshaft (3400 Equinox only)
    Specific oil pan and improved oil pan gasket material (3400 Equinox only)
    New intake manifold and improved intake manifold gasket (3400 Equinox only)
    New engine cover (3400 Equinox only)
    Electronic throttle control (3400 Equinox only)
    Returnless fuel rail and pipe assembly (3400 Equinox only)
    Neutral torque axis engine mount (3400 Equinox only)
    Air gap exhaust crossover (3400 Equinox only)
    P05 controller (3400 Equinox only)
    Expanded applications (3500 only)
    Large pin iron crankshaft (for Chevrolet Uplander, Saturn Relay, Pontiac Montana SV6) (3500 only)
    Improved throttle body (3500 only)
    PTFE crankshaft seals
    Modified fuel rail assembly to implement the "shrouded tip" Multec 2 Injectors (3500 only)
    Acoustic cover for Malibu and G6 applications (3500 only)
    Last edited by Smittro; 06-03-2010 at 10:20 PM.

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