0
0
Top Categories
All Categories

Top Categories

All Categories


Shop By Vehicle
Account Login
1-800-345-4545
Gift Cards
Track Order
Help
Holley 300-49

Holley Pro-Jection 2-Barrel Manifold 1957-86 All Models 1987-Up With Aluminum Cylinder Heads

510-300-49

made in usa
Free Shipping Ships directly from the manufacturer
$20 off $200, $50 off $500 and $100 off $1,000 Order. Promotion Code: SPRINGSAVINGS exclusions apply

$238.95
Holley Pro-Jection 2-Barrel Manifold 1957-86 All Models 1987-Up With Aluminum Cylinder Heads $238.95
Out of stock
QTY
Pro-Jection 2-Barrel Manifold
  • 1957-86 All Models
  • 1987-Up With Aluminum Cylinder Heads
  • Holley 300-49 Details

    Pro-Jection EFI Intake Manifolds

    Features:

  • Designed for use with Holley 2-bbl Pro-Jection throttle bodies.
  • High rise/dual plane design.
  • Idle-6000 RPM power band.
  • EGR provision.

    Installation Notes: Utilizes late model alternator and A/C bracket mounting provisions. Has vacuum taps off manifold runners. Extra installation hardware included.

  • Specifications:

    Engine Make/Size
    Chevy Small Block (262-400)
    RPM Range
    Idle-6000
    Number Of Carbs
    Two
    Emission
    With EGR
    Emission
    Without EGR
    Cylinder Head Type
    Standard
    Usage
    Street/Strip
    Position
    Upper
    Aftermarket Fuel Rail Required
    No
    Base Finish
    Natural
    Base Material
    Aluminum
    Basic Operating RPM Range
    Idle-6,000
    Engine Block Style
    Stock/OEM standard deck
    Fuel Rails Included
    No
    Injection Style
    Throttle body
    Injectors Included
    No
    Intake Section Included
    Complete
    Plenum Finish
    Natural
    Plenum Material
    Aluminum
    Quantity
    Sold individually
    Runners Included
    No
    Runners Removable
    No
    Supplemental Bosses Cast-In
    No
    Supplemental Bosses Machined
    No
    Throttle Body Included
    No
    EGR
    Yes
    Manufacturer's Part Number:
    300-49

    RPM Range: Idle to 6,000
    Designed for use with 2-barrel Pro-Jection throttle bodies, these manifolds utilize a high rise/dual plane design.

    Pro-Jection Manifold Features:
  • Exhaust Heat Cross-Over
  • EGR Provision
  • Late Model Alternator & A/C Mounts

    Note: These manifolds are NOT intended as an O.E. replacement for 1987-later fuel injected trucks.

  • Does Holley 300-49 fit your vehicle?

    Narrow Results

    1988-1991 CHEVROLET C2500 PICKUP

    • Liter: 5.7
    • SubModel: SILVERADO
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1988-1992 CHEVROLET C3500 PICKUP

    • Liter: 5.7
    • SubModel: SCOTTSDALE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987 CHEVROLET CAMARO

    • Liter: 5.7
    • SubModel: IROC-Z
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987 CHEVROLET R10 SUBURBAN

    • CC: 5031
    • Liter: 5.0
    • SubModel: SILVERADO
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1985-1986 CHEVROLET CAMARO

    • CC: 5031
    • Fitment_Note: Not Legal For Street Use
    • Liter: 5.0
    • SubModel: Z28
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1988-1995 GMC C2500 PICKUP

    • Liter: 5.0
    • SubModel: SIERRA SLE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1987 CHEVROLET R20 SUBURBAN

    • Liter: 5.7
    • SubModel: CUSTOM DELUXE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1989-1990 CHEVROLET CAPRICE

    • CC: 5031
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1994 GMC K1500

    • Liter: 5.7
    • SubModel: SIERRA SL
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987-1989 CHEVROLET G30 VAN

    • Liter: 5.7
    • SubModel: SPORTVAN
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1994-1995 GMC C3500 PICKUP

    • Liter: 5.7
    • SubModel: SIERRA SL
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1988 CHEVROLET R30 PICKUP

    • Liter: 5.7
    • Aspiration: N
    • SubModel: CUSTOM DELUXE
    • Engine Vin: M
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987-1988 GMC V3500 PICKUP

    • Liter: 5.7
    • SubModel: HIGH SIERRA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1989-1990 CHEVROLET CAPRICE

    • EngineType: ALL
    • SubModel: CLASSIC BROUGHAM

    1993-1994 GMC K1500

    • Liter: 5.7
    • SubModel: SIERRA SLE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1990-1995 CHEVROLET K1500 PICKUP

    • Liter: 5.7
    • SubModel: WT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987 GMC R2500 PICKUP

    • Liter: 5.0
    • SubModel: SIERRA CLASSIC
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1994-1995 GMC C2500 PICKUP

    • Liter: 5.0
    • SubModel: SIERRA SLT
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1994 GMC G15/G1500 VAN

    • EngineType: ALL
    • SubModel: RALLY STX

    1995 CHEVROLET TAHOE

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1994 CHEVROLET BLAZER

    • Liter: 5.7
    • SubModel: SILVERADO
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1995 CHEVROLET G30 VAN

    • Liter: 5.7
    • SubModel: SPORTVAN
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1989-1995 GMC P3500 VAN

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1984-1986 CHEVROLET CORVETTE

    • Fitment_Note: Not Legal For Street Use
    • EngineType: ALL
    • SubModel: ALL

    1990-1995 CHEVROLET C1500 PICKUP

    • Liter: 5.7
    • SubModel: WT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1988-1995 CHEVROLET K1500 PICKUP

    • Liter: 5.7
    • SubModel: CHEYENNE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1995 GMC K1500 PICKUP

    • Liter: 5.0
    • SubModel: SIERRA SPECIAL
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1988-1993 GMC K2500 PICKUP

    • Liter: 5.7
    • SubModel: SIERRA SLX
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987 CHEVROLET R10 PICKUP

    • CC: 5031
    • Liter: 5.0
    • SubModel: CUSTOM DELUXE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1995 CHEVROLET K1500 SUBURBAN

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987 GMC V1500 PICKUP

    • Liter: 5.0
    • SubModel: HIGH SIERRA
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1995 GMC C2500 SUBURBAN

    • Liter: 5.7
    • SubModel: SLT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987-1991 CHEVROLET BLAZER

    • Liter: 5.7
    • SubModel: SILVERADO
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1988-1991 CHEVROLET BLAZER

    • Liter: 5.7
    • SubModel: SCOTTSDALE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987-1995 GMC G25/G2500 VAN

    • Liter: 5.7
    • SubModel: RALLY STX
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1989-1991 CHEVROLET R1500 SUBURBAN

    • Liter: 5.7
    • SubModel: SILVERADO
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987-1988 CHEVROLET V10 SUBURBAN

    • Liter: 5.7
    • SubModel: SILVERADO
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1960-1961 CHEVROLET CORVETTE

    • CC: 4638
    • Fitment_Note: Not Legal For Street Use
    • Liter: 4.6
    • SubModel: BASE
    • CUI: 283
    • EngineType: V8 ( 4.6 L / 283 )

    1994 CHEVROLET BLAZER

    • Liter: 5.7
    • SubModel: SILVERADO SPORT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1957 CHEVROLET CORVETTE

    • Fitment_Note: Not Legal For Street Use
    • EngineType: ALL
    • SubModel: ALL

    1990-1995 CHEVROLET K1500 PICKUP

    • CC: 5031
    • Liter: 5.0
    • SubModel: WT
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1987-1988 CHEVROLET R30 PICKUP

    • Liter: 5.7
    • SubModel: CUSTOM DELUXE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987 GMC R1500 PICKUP

    • Liter: 5.0
    • SubModel: HIGH SIERRA
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1995 GMC C1500 PICKUP

    • CC: 5031
    • Liter: 5.0
    • SubModel: SIERRA SL
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1962-1965 CHEVROLET CORVETTE

    • CC: 5358
    • Fitment_Note: Not Legal For Street Use
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1995 CHEVROLET C1500 SUBURBAN

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1994-1995 GMC C1500 PICKUP

    • Liter: 5.7
    • SubModel: SIERRA SLT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1988 CHEVROLET CAMARO

    • CC: 5031
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1988-1992 CHEVROLET K1500 PICKUP

    • CC: 5031
    • Liter: 5.0
    • SubModel: SCOTTSDALE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1987-1988 CHEVROLET V30 PICKUP

    • Liter: 5.7
    • SubModel: CUSTOM DELUXE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1992-1994 GMC K1500 SUBURBAN

    • EngineType: ALL
    • SubModel: ALL

    1987-1988 GMC P3500 VAN

    • Liter: 5.7
    • SubModel: VALUE VAN
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987-1988 CHEVROLET R20 PICKUP

    • CC: 5031
    • Liter: 5.0
    • SubModel: CUSTOM DELUXE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1994-1995 CHEVROLET K2500 PICKUP

    • CC: 5031
    • Liter: 5.0
    • SubModel: WT
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1987 GMC V1500 PICKUP

    • Liter: 5.0
    • SubModel: SIERRA CLASSIC
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1987-1996 GMC G35/G3500 VAN

    • Liter: 5.7
    • SubModel: RALLY STX
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987-1989 CHEVROLET G10 VAN

    • CC: 5031
    • Liter: 5.0
    • SubModel: CHEVY VAN
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1988-1992 CHEVROLET C1500 PICKUP

    • CC: 5031
    • Liter: 5.0
    • SubModel: SCOTTSDALE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1987 GMC V1500 PICKUP

    • Liter: 5.7
    • SubModel: SIERRA CLASSIC
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1994 GMC YUKON

    • Liter: 5.7
    • SubModel: SPORT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1989-1996 GMC G35/G3500 VAN

    • Liter: 5.7
    • SubModel: MAGNAVAN
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987-1993 GMC G15/G1500 VAN

    • Liter: 5.0
    • SubModel: RALLY
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1995 CHEVROLET C1500 SUBURBAN

    • Liter: 5.7
    • SubModel: LT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1995 CHEVROLET C1500 PICKUP

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1995 GMC K1500 PICKUP

    • Liter: 5.7
    • SubModel: SIERRA SLS
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987-1991 GMC JIMMY

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1989-1991 CHEVROLET R3500 PICKUP

    • Liter: 5.7
    • SubModel: SILVERADO
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987-1988 CHEVROLET V20 SUBURBAN

    • Liter: 5.7
    • SubModel: SCOTTSDALE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1960-1961 CHEVROLET CORVETTE

    • CC: 4638
    • Fitment_Note: Not Legal For Street Use
    • Liter: 4.6
    • SubModel: BASE
    • CUI: 283
    • EngineType: V8 ( 4.6 L / 283 )

    1995 CHEVROLET C1500 SUBURBAN

    • Liter: 5.7
    • SubModel: LS
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1990-1996 CHEVROLET G30 VAN

    • Liter: 5.7
    • Aspiration: N
    • SubModel: SPORTVAN
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1990 CHEVROLET CORVETTE

    • EngineType: ALL
    • SubModel: BASE

    1992-1994 CHEVROLET K1500 SUBURBAN

    • EngineType: ALL
    • SubModel: ALL

    1987 CHEVROLET V20 SUBURBAN

    • Liter: 5.7
    • SubModel: CUSTOM DELUXE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987-1994 CHEVROLET P-30 STEP VAN

    • EngineType: ALL
    • SubModel: ALL

    1987 GMC R2500 PICKUP

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1992-1994 GMC C1500 SUBURBAN

    • EngineType: ALL
    • SubModel: ALL

    1990-1995 CHEVROLET G10 VAN

    • Liter: 5.0
    • SubModel: BEAUVILLE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1991-1992 CHEVROLET CAMARO

    • CC: 5031
    • Liter: 5.0
    • SubModel: Z28
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1994 CHEVROLET C2500 PICKUP

    • CC: 5735
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1995 GMC K1500 SUBURBAN

    • Liter: 5.7
    • SubModel: SLE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1988-1993 GMC C1500 PICKUP

    • Liter: 5.0
    • SubModel: SIERRA SLX
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1994-1995 GMC C2500 PICKUP

    • Liter: 5.7
    • SubModel: SIERRA SLT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1988-1995 CHEVROLET C2500 PICKUP

    • CC: 5031
    • Liter: 5.0
    • SubModel: SILVERADO
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1989-1992 CHEVROLET CAMARO

    • CC: 5031
    • Liter: 5.0
    • SubModel: RS
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1988-1995 CHEVROLET K1500 PICKUP

    • CC: 5031
    • Liter: 5.0
    • SubModel: CHEYENNE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1987 CHEVROLET CAMARO

    • CC: 5031
    • Liter: 5.0
    • SubModel: IROC-Z
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1994-1995 CHEVROLET K1500 PICKUP

    • CC: 5031
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1992-1993 CHEVROLET K2500 PICKUP

    • Liter: 5.7
    • SubModel: CHEYENNE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1994 GMC C1500 PICKUP

    • Liter: 5.0
    • SubModel: SIERRA SLT
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1988-1993 GMC K2500 PICKUP

    • Liter: 5.7
    • SubModel: SIERRA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1995 CHEVROLET TAHOE

    • Liter: 5.7
    • SubModel: LT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1994-1995 GMC K2500 PICKUP

    • Liter: 5.7
    • SubModel: SIERRA SL
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1994-1995 CHEVROLET K3500 PICKUP

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987 GMC R1500 PICKUP

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1990 GMC V2500 SUBURBAN

    • Liter: 5.7
    • SubModel: SLE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987-1988 CHEVROLET G30 VAN

    • Liter: 5.7
    • SubModel: CHEVY VAN
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1992-1995 CHEVROLET P30 VAN

    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987 CHEVROLET R20 PICKUP

    • CC: 5031
    • Liter: 5.0
    • SubModel: SCOTTSDALE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1992-1995 CHEVROLET K2500 SUBURBAN

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )
    300-49 is rated 4.5 out of 5 by 2.
    Rated 4 out of 5 by from Original bolts will not clear one runner. I used locking cap bolts as a substitute. There is one vacuum port. My truck used this exact port for a trans kick down. The directions state this is for the brake booster. I made a T fitting to run both to the same port. Doing this required me to run a new booster line. I had to reroute my heater core coolant line to work with this manifold. Otherwise works great.
    Date published: 2017-05-27
    • y_2019, m_4, d_18, h_24
    • bvseo_bulk, prod_bvrr, vn_bulk_2.0.12
    • cp_1, bvpage1
    • co_hasreviews, tv_1, tr_1
    • loc_en_US, sid_10001_10001_18846, prod, sort_[SortEntry(order=RATING, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs

    Is there any adjustments needed for a stock 1990 Chevy c1500 5.7l ? It has fuel injectors at the moment

    Asked by: Castrofed350
    1987-Up With Aluminum Cylinder Heads; not cast iron . many truck applications are cast iron.
    Answered by: SteveM
    Date published: 2018-02-16
    • y_2019, m_4, d_16, h_19CST
    • bvseo_bulk, prod_bvqa, vn_bulk_2.0.12
    • cp_1, bvpage1
    • co_hasquestionsanswers, tq_1
    • loc_en_US, sid_10001_10001_18846, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs

    Items You Need

    Some parts are not legal for use in California or other states with similar laws / regulations

    Motor Vehicles

    WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.

    Tools:

    WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

    Electrical Cords

    WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.