SKU: 94966839552

Fits Small Block Chevy, 2.5" Collector-Natural Finish, Exhaust Manifold 8525HKR

$157.47 $174.97
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Description

Fits Small Block Chevy, 2.5" Collector-Natural Finish, Exhaust Manifold 8525HKRHooker's new cast iron small block Chevy exhaust manifolds offer an increase in performance and visual appearance over stock style manifolds. Their compact design fit into a wide variety of replacement and engine swap applications. This means you get the traditional look and easy fitment of a stock style exhaust manifold but now with a smoother, cleaner appearance, plus more modern features. These manifolds are cast out of high silicon molybdenum

Hooker's new cast iron small-block Chevy exhaust manifolds offer an increase in performance and visual appearance over stock-style manifolds. Their compact design fit into a wide variety of replacement and engine swap applications. This means you get the traditional look and easy fitment of a stock style exhaust manifold but now with a smoother, cleaner appearance, plus more modern features. These manifolds are cast out of high silicon-molybdenum ductile iron for high temperature strength and better resistance to oxidation and cracking. Internally these manifolds have a larger than stock 1 5/8-inch cross-sectional area and 2 1/2-inch outlets for better air flow and improved performance. Designed for rectangular port heads, these manifolds fit many popular GM applications including standard straight and Vortec straight plug head designs. Finishes include natural, silver, black, and titanium ceramic. Gaskets and hardware are included, along with weld-on flanges to aid in downpipe installation.


Features:

  • A smoother, cleaner appearance compared to original exhaust manifolds, while maintaining a factory style look and feel
  • Made from high silicon-molybdenum ductile iron for high temperature strength plus resistance to oxidation and cracking
  • Designed with a larger 1 5/8? cross-sectional area and 2 ½? outlets for better air flow and increased performance
  • Designed for rectangular port heads
  • Accommodates standard straight and Vortec straight plug head designs for better application coverage
  • Includes weld-on flanges for easier downpipe pipe installation (custom downpipe required)
  • Available in natural cast iron or ceramic coated finishes (silver, black and titanium)
  • Includes mounting hardware and gaskets for inlet and outlet flanges

Specs:

Bolt Size 3/8-16 x 3/4
Brand Hooker
California Proposition 65 Chemical Name Nickel (Metallic)
California Proposition 65 Required Yes
CARB (California) Compliant No
Collector Diameter 2.50 inch
Emission Code 3
Engine Chevrolet Small Block Gen I
Exhaust Port Shape Rectangle
Header Finish Natural
Header Style Manifold
Material Cast Iron
Primary Tube Diameter (in) 1-5/8 inch
Product Type Manifold
Sale Category Exhaust

Application:

Year Make Model Submodel
1968-1974 Chevrolet C10 Pickup Base
1968-1974 GMC C15/C1500 Pickup Base
1973-1974 Buick Century Base
1973-1974 Buick Century Luxus
1961-1974 Buick LeSabre Base
1974 Buick LeSabre Luxus
1973-1974 Buick Regal Base
1958-1974 Chevrolet Bel Air Base
1970-1974 Chevrolet Camaro Base
1973-1974 Chevrolet Camaro LT
1970-1974 Chevrolet Camaro Z28
1973-1974 Chevrolet Caprice Classic
1973-1974 Chevrolet Caprice Estate
1958-1974 Chevrolet Impala Base
1973-1974 Chevrolet Laguna Base
1974 Chevrolet Laguna Type S-3
1964-1974 Chevrolet Malibu Base
1974 Chevrolet Malibu Classic
1973-1974 Chevrolet Malibu Estate
1971-1974 Chevrolet Monte Carlo Base
1973-1974 Chevrolet Monte Carlo Landau
1961-1974 Oldsmobile Cutlass Base
1968-1974 Oldsmobile Cutlass S
1971-1974 Oldsmobile Delta 88 Base
1971-1974 Oldsmobile Delta 88 Royale
1958-1974 Pontiac Catalina Base
1959-1974 Pontiac Catalina Safari
1971-1974 Pontiac Firebird Base
1971-1974 Pontiac Firebird Esprit
1971-1974 Pontiac Firebird Formula
1971-1974 Pontiac Firebird Trans Am
1973-1974 Pontiac Grand Am Base
1962-1974 Pontiac Grand Prix Base
1963-1974 Pontiac LeMans Base
1972-1974 Pontiac LeMans Luxury
1969-1974 Pontiac LeMans Safari
1974 Pontiac LeMans Safari Luxury
1970-1974 Pontiac LeMans Sport
1971-1973 Buick Centurion Base
1965-1973 Buick LeSabre Custom
1970-1973 Chevrolet Camaro RS
1965-1973 Chevrolet Chevelle Deluxe
1973 Chevrolet Laguna Estate
1973 Chevrolet Monte Carlo S
1964-1973 Pontiac GTO Base
1970-1972 Buick Skylark 350
1961-1972 Buick Skylark Base
1968-1972 Buick Skylark Custom
1964-1972 Buick Sportwagon Base
1958-1972 Chevrolet Biscayne Base
1970-1972 Chevrolet Camaro SS
1971-1972 Chevrolet Caprice Base
1964-1972 Chevrolet Chevelle Base
1967-1972 Chevrolet Chevelle Concours
1969-1972 Chevrolet Chevelle Concours Estate
1969-1972 Chevrolet Chevelle Greenbrier
1968-1972 Chevrolet Chevelle Malibu
1968-1972 Chevrolet Chevelle Nomad
1964-1972 Chevrolet Chevelle SS
1972 Oldsmobile Cutlass Cruiser
1961-1972 Oldsmobile F85 Base
1971-1972 Pontiac Catalina Brougham
1971 Oldsmobile Delta 88 Custom
1970-1971 Pontiac GTO The Judge
1971 Pontiac LeMans T37
1959-1970 Chevrolet El Camino Base
1968-1970 Chevrolet El Camino Custom
1968-1970 Chevrolet El Camino SS
1964-1970 Oldsmobile Vista Cruiser Base
1958-1970 Pontiac Bonneville Base
1959-1970 Pontiac Bonneville Safari
1962-1970 Pontiac Catalina Ventura
1967-1970 Pontiac Executive Base
1967-1970 Pontiac Executive Safari
1961-1970 Pontiac Tempest Base
1970 Pontiac Tempest GT
1961-1969 Buick Special Base
1966-1969 Buick Sportwagon Custom
1967-1969 Chevrolet Chevelle 300 Deluxe
1961-1969 Pontiac Tempest Custom
1961-1969 Pontiac Tempest Safari
1967-1968 Chevrolet Chevelle 300
1961-1967 Buick Special Deluxe
1964-1967 Chevrolet Impala SS
1964-1967 Oldsmobile Cutlass Holiday
1967 Oldsmobile Cutlass Turnpike Cruiser
1964-1967 Oldsmobile Vista Cruiser Custom
1964-1967 Pontiac Catalina 2+2
1962-1966 Oldsmobile F85 Deluxe
1966 Oldsmobile F85 Holiday
1958-1966 Pontiac Star Chief Base
1966 Pontiac Star Chief Executive
1962-1965 Buick Wildcat Base
1965 Buick Wildcat Custom
1965 Buick Wildcat Deluxe
1962-1965 Chevrolet Chevy II Base
1962-1965 Chevrolet Chevy II Nova
1964-1965 Chevrolet Chevy II Nova SS
1961-1965 Oldsmobile Starfire Base
1961-1963 Buick Invicta Base
1959-1962 Pontiac Bonneville Custom
1961-1962 Pontiac Tempest LeMans
1960-1961 Pontiac Ventura Base
1960 Chevrolet Biscayne Fleetmaster
1958 Chevrolet Del Ray Base
1958 Pontiac Chieftain Base
1958 Pontiac Chieftain Safari
1958 Pontiac Star Chief Custom Safari
1958 Pontiac Star Chief Super Deluxe
1958 Pontiac Super Chief Base
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 94966839552

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4.0 ★★★★★
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Product Reviews
T
Verified Purchase
Tharin
Massapequa, US
★★★★★ 5
BUY THIS ONE!
Model: NewSLS50_52
This is one of the good ones. There are other brands just as good, and manny brands are worse, but this handles well, rolls down easily, doesn't come off at all easily, and adapts to dips and curves like a champ. Appropriately heavy and dead, I'm happy with the way it smothers panel resonances and even at muffling direct sound, like a big hand over my Uncle Harry's eternally noisy mouth. You can rip the foil but you have to work hard at doing that. Remember to buy a brayer; you can roll overlaps nice and thin. Also remember to pre-wipe the sheet metal with a decent solvent like acetone or Stoddard/Varsol. It should last forever.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2025
H
Verified Purchase
Harvey
Louisville, US
★★★★★ 5
Good stuff, but watch the temp
Model: NewSLS50_52
I used this in my single cab pickup truck (89 ford.) It only took half the box (10 sheets or 25 square feet) to do the floors, but I bought the big box because I plan to do the doors, back wall, and maybe the roof as well. One thing I learned is that the temperature matters when you’re doing the installation. It was around 55F when I started in the evening, and when it dipped down into the 40s the sheets would not stick to the metal, and were hard to compress with the roller. That’s why I ended up only doing the floors and not any vertical surfaces; i will have to wait for a nice hot day. The other thing is that the foil layer on top is razor sharp at the edges, definitely wear gloves! I didn’t notice until after but I have little papercuts all over my fingers. Aside from those things, the install was easy and straightforward. The sheets cut easily with scissors, and any goo that ends up on your hands or scissors can be cleaned up with acetone (nail polish remover), or lacquer thinner. I would use this stuff again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 16, 2023
L
Verified Purchase
Lyrah
Alexandria, US
★★★★★ 5
Very efficient!
Model: NewSLS50_52
Amazing the difference it makes on dumping the noise. Very easy to install. Pell and stick literally! Great!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 23, 2025
A
Verified Purchase
Alexis
Lowell, US
★★★★★ 5
Supports DP Alt + Power Delivery from one source
This is one of the very, very few USB-C hubs out there that successfully pushes DisplayPort Alt and 100w PD functionality from one source cable to one device. My monitor has a USB-C DP alt port that also pushes 95w PD and this hub successfully pushes both of those to my laptop, phone, and android handheld console. The marketing material says something about USB PD cannot work with DP alt, but it seems to be working fine for me so who knows. With this little hub in-between the link from the monitor to the device, I can now add a USB ethernet adapter and game controller, and I only ever have to plug one USB-C cable into my device (and I am using a USB4 extension cable with no issues as well) and it all works perfectly!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 21, 2026
M
Verified Purchase
Mark N.
Birmingham, US
★★★★★ 5
Supports Reverse Charging a Laptop on Monitors with USB-C PD!
This adapter is unique in that it supports reverse charging + video on the same port. I use this with an LG monitor (60W PD) and an M1 Pro Mac. At first, I had connectivity issues: hub was disconnecting and reconnecting every few seconds. I followed advice to update the firmware on the hub, but that didn't solve the issue. Turns out, my monitor also needed a firmware update. Once I updated the monitor firmware, it stabilized and has been working great ever since.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 4, 2025

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