and Performance Parts and Accessories

Pontiac Firebird Parts - Bottom End
Classic Industries offers a wide selection of Bottom End Engine Components for your Pontiac Firebird. Classic Industries offers Pontiac Firebird Bearings, Pontiac Firebird Connecting Rods, Pontiac Firebird Crankshaft, Pontiac Firebird Engine Block, Pontiac Firebird Hardware, and Pontiac Firebird Pistons & Rings.
- Add to Cart
- Add to Wishlist
- Add to Cart
- Add to Wishlist
- Add to Cart
- Add to Wishlist
- Add to Cart
- Add to Wishlist
- Add to Cart
- Add to Wishlist
- Add to Cart
- Add to Wishlist
- Add to Cart
- Add to Wishlist
- Add to Cart
- Add to Wishlist
- Add to Cart
- Add to Wishlist
- Add to Cart
- Add to Wishlist
- Add to Cart
- Add to Wishlist
- Add to Cart
- Add to Wishlist
- Add to Cart
- Add to Wishlist
- Add to Cart
- Add to Wishlist
- Add to Cart
- Add to Wishlist
- Add to Cart
- Add to Wishlist
- Add to Cart
- Add to Wishlist
- Add to Cart
- Add to Wishlist
-
This is a NOS (new old stock) GM # 14011083 Bow Tie connecting rod. This is one rod, sometimes needed if you spin a rod bearing. Get them while you can, stock is limited to quantity on hand.
- Add to Cart
- Add to Wishlist
-
This is a NOS (new old stock) GM # 14011083 Bow Tie connecting rod. This is one rod, sometimes needed if you spin a rod bearing. Get them while you can, stock is limited to quantity on hand.
- Add to Cart
- Add to Wishlist
-
This is a NOS (new old stock) GM # 14011083 Bow Tie connecting rod. This is one rod, sometimes needed if you spin a rod bearing. Get them while you can, stock is limited to quantity on hand.
- Add to Cart
- Add to Wishlist
-
This is a NOS (new old stock) GM # 14011083 Bow Tie connecting rod. This is one rod, sometimes needed if you spin a rod bearing. Get them while you can, stock is limited to quantity on hand.
- Add to Cart
- Add to Wishlist
-
This is a NOS (new old stock) GM # 14011083 Bow Tie connecting rod. This is one rod, sometimes needed if you spin a rod bearing. Get them while you can, stock is limited to quantity on hand.
- Add to Cart
- Add to Wishlist
-
This is a NOS (new old stock) GM # 14011083 Bow Tie connecting rod. This is one rod, sometimes needed if you spin a rod bearing. Get them while you can, stock is limited to quantity on hand.
- Add to Cart
- Add to Wishlist
-
This is a NOS (new old stock) GM # 14011083 Bow Tie connecting rod. This is one rod, sometimes needed if you spin a rod bearing. Get them while you can, stock is limited to quantity on hand.
- Add to Cart
- Add to Wishlist
-
This is a NOS (new old stock) GM # 14011083 Bow Tie connecting rod. This is one rod, sometimes needed if you spin a rod bearing. Get them while you can, stock is limited to quantity on hand.
- Add to Cart
- Add to Wishlist
-
This is a NOS (new old stock) GM # 14011083 Bow Tie connecting rod. This is one rod, sometimes needed if you spin a rod bearing. Get them while you can, stock is limited to quantity on hand.
- Add to Cart
- Add to Wishlist
-
This is a NOS (new old stock) GM # 14011083 Bow Tie connecting rod. This is one rod, sometimes needed if you spin a rod bearing. Get them while you can, stock is limited to quantity on hand.
- Add to Cart
- Add to Wishlist
-
This is a NOS (new old stock) GM # 14011083 Bow Tie connecting rod. This is one rod, sometimes needed if you spin a rod bearing. Get them while you can, stock is limited to quantity on hand.
- Add to Cart
- Add to Wishlist
-
This is a NOS (new old stock) GM # 14011083 Bow Tie connecting rod. This is one rod, sometimes needed if you spin a rod bearing. Get them while you can, stock is limited to quantity on hand.
- Add to Cart
- Add to Wishlist
-
This is a NOS (new old stock) GM # 14011083 Bow Tie connecting rod. This is one rod, sometimes needed if you spin a rod bearing. Get them while you can, stock is limited to quantity on hand.
- Add to Cart
- Add to Wishlist
-
This is a NOS (new old stock) GM # 14011083 Bow Tie connecting rod. This is one rod, sometimes needed if you spin a rod bearing. Get them while you can, stock is limited to quantity on hand.
- Add to Cart
- Add to Wishlist
-
Planning to use an older-style crankshaft in a small block Chevy engine newer than 1986? You'll need this billet aluminum adapter to convert to the original two-piece rear seal design. Includes installation hardware.
- Add to Cart
- Add to Wishlist
-
Planning to use an older-style crankshaft in a small block Chevy engine newer than 1986? You'll need this billet aluminum adapter to convert to the original two-piece rear seal design. Includes installation hardware.
- Add to Cart
- Add to Wishlist
-
Planning to use an older-style crankshaft in a small block Chevy engine newer than 1986? You'll need this billet aluminum adapter to convert to the original two-piece rear seal design. Includes installation hardware.
- Add to Cart
- Add to Wishlist
-
Planning to use an older-style crankshaft in a small block Chevy engine newer than 1986? You'll need this billet aluminum adapter to convert to the original two-piece rear seal design. Includes installation hardware.
- Add to Cart
- Add to Wishlist
-
Planning to use an older-style crankshaft in a small block Chevy engine newer than 1986? You'll need this billet aluminum adapter to convert to the original two-piece rear seal design. Includes installation hardware.
- Add to Cart
- Add to Wishlist
-
Planning to use an older-style crankshaft in a small block Chevy engine newer than 1986? You'll need this billet aluminum adapter to convert to the original two-piece rear seal design. Includes installation hardware.
- Add to Cart
- Add to Wishlist
-
Planning to use an older-style crankshaft in a small block Chevy engine newer than 1986? You'll need this billet aluminum adapter to convert to the original two-piece rear seal design. Includes installation hardware.
- Add to Cart
- Add to Wishlist
-
Planning to use an older-style crankshaft in a small block Chevy engine newer than 1986? You'll need this billet aluminum adapter to convert to the original two-piece rear seal design. Includes installation hardware.
- Add to Cart
- Add to Wishlist
-
Planning to use an older-style crankshaft in a small block Chevy engine newer than 1986? You'll need this billet aluminum adapter to convert to the original two-piece rear seal design. Includes installation hardware.
- Add to Cart
- Add to Wishlist
-
Planning to use an older-style crankshaft in a small block Chevy engine newer than 1986? You'll need this billet aluminum adapter to convert to the original two-piece rear seal design. Includes installation hardware.
- Add to Cart
- Add to Wishlist
-
Planning to use an older-style crankshaft in a small block Chevy engine newer than 1986? You'll need this billet aluminum adapter to convert to the original two-piece rear seal design. Includes installation hardware.
- Add to Cart
- Add to Wishlist
-
Series 9000 Cast Pro Stock replacement crankshafts are designed to replace stock crankshafts that have seen better days. For stock to mildly-built street engines, this crank is precision ground and micropolished. No more...
- Add to Cart
- Add to Wishlist
-
Series 9000 Cast Pro Stock replacement crankshafts are designed to replace stock crankshafts that have seen better days. For stock to mildly-built street engines, this crank is precision ground and micropolished. No more...
- Add to Cart
- Add to Wishlist
-
Series 9000 Cast Pro Stock replacement crankshafts are designed to replace stock crankshafts that have seen better days. For stock to mildly-built street engines, this crank is precision ground and micropolished. No more...
- Add to Cart
- Add to Wishlist
-
This rear seal adapter for small block Chevrolet engines, is for the 1986 and newer blocks with the one-piece rear seal. It converts the one-piece rear main seal and newer small block Chevrolet blocks to the old style,...
- Add to Cart
- Add to Wishlist
-
This rear seal adapter for small block Chevrolet engines, is for the 1986 and newer blocks with the one-piece rear seal. It converts the one-piece rear main seal and newer small block Chevrolet blocks to the old style,...
- Add to Cart
- Add to Wishlist
-
This rear seal adapter for small block Chevrolet engines, is for the 1986 and newer blocks with the one-piece rear seal. It converts the one-piece rear main seal and newer small block Chevrolet blocks to the old style,...
- Add to Cart
- Add to Wishlist
-
This rear seal adapter for small block Chevrolet engines, is for the 1986 and newer blocks with the one-piece rear seal. It converts the one-piece rear main seal and newer small block Chevrolet blocks to the old style,...
- Add to Cart
- Add to Wishlist
-
This is a NOS (new old stock) GM # 14011082 Bow Tie connecting rod. This is one rod, sometimes needed if you spin a rod bearing. Get them while you can, stock is limited to quantity on hand.
- Add to Cart
- Add to Wishlist
-
1970-1973 LT-1 Connecting Rod: This forged steel connecting rod earned it's reputation for strength and performance in the high performance LT-1 Z-28 Camaro of the early 70's. It has provided dependable service in countless...
- Add to Cart
- Add to Wishlist
-
Crankshaft Balancer Hub Applications: 1996-1997 Chevrolet Camaro - 5.7L V8 1996 Chevrolet Corvette - 5.7L V8 1996-1997 Pontiac Firebird - 5.7L V8
- Add to Cart
- Add to Wishlist
-
Crankshaft Balancer Hub Applications: 1993-1995 Chevrolet Camaro - 5.7L V8 1992-1995 Chevrolet Corvette - 5.7L V8 1993-1995 Pontiac Firebird - 5.7L V8
- Add to Cart
- Add to Wishlist
-
This set includes 8 high quality GM 5.70" length connecting rods which are used in the LT1 and LT4 Corvette engines for higher strength and reliability. These rods can be used in moderate competition or for street rods. Use...
- Add to Cart
- Add to Wishlist
-
This 1982-2014 GM/GMC Camshaft Bearing is a genuine GM replacement part. The corresponding GM part number is 12453170. This is a bearing, camshaft (position #1 & 4) (*39) (housing flange is blank), for Chevrolet, Chevrolet...
- Add to Cart
- Add to Wishlist
-
This 1982-2014 GM/GMC Camshaft Bearing is a genuine GM replacement part. The corresponding GM part number is 12453171. This is a bearing, camshaft (position #2-5) (*41, 43, 44), for Chevrolet, Chevrolet Trucks, Buick,...
- Add to Cart
- Add to Wishlist
-
This 1982-2014 GM/GMC Camshaft Bearing is a genuine GM replacement part. The corresponding GM part number is 12453172. This is a bearing, camshaft (position #2), for Chevrolet, Chevrolet Trucks, Buick, Oldsmobile Trucks,...
- Add to Cart
- Add to Wishlist
-
Small Block Bearing Cap Bolt: This original bolt is installed on small block engines. For use with non high performance engines. Measures 7/16-14 x 3-11/32.
- Add to Cart
- Add to Wishlist
-
Rear Main Oil Seal: Correct crankshaft bearing and oil shaft seal for use with small block engines. The seals will fit 302, 307, 327 and 350 engines.
- Add to Cart
- Add to Wishlist
- AC & Heater
-
AC & Heater
- AC Parts (140)
- AC Systems (25)
- Controls (66)
- Heater Parts (66)
- See All
- Audio & Security
-
Audio & Security
- Antenna Parts (41)
- GPS and Radar Det…(5)
- Radio / Stereos…(82)
- Radio and Stereo…(36)
- See All
- Body Components
-
Body Components
- Body Mounts (60)
- Bumper Compon…(257)
- Bumpers (35)
- Convertible (189)
- See All
- Body Panels
-
Body Panels
- Body Repair Supp…(58)
- Cowl (37)
- Dash Panels (11)
- Doors (42)
- See All
- Brakes
-
Brakes
- ABS and TCS Parts (2)
- Brake Accessories (32)
- Brake Chemicals (19)
- Brake Hardware (81)
- See All
- Car Care
-
Car Care
- Accessories (34)
- Car Covers (62)
- Cleaning Supplies (185)
- Fender Covers (12)
- See All
- Cooling System
-
Cooling System
- Additives (6)
- Electric Fan (133)
- Fan Components (119)
- Gaskets & O-rings (8)
- See All
- Dash Components
-
Dash Components
- Aftermarket Das…(110)
- Ashtrays (12)
- Bezels (36)
- Cigarette Lighte…(30)
- See All
- Electrical & Wiring
-
Electrical & Wiring
- Batteries (202)
- Charging System (155)
- Chemicals (1)
- Chemicals & Supp…(30)
- See All
- Emblems & Decals
-
Emblems & Decals
- Custom & Specialty (80)
- Exterior Emblems (210)
- Hardware (66)
- Interior Emblems (32)
- See All
- Engine
-
Engine
- Acc. Drive Belts (88)
- Air Cleaners &…(334)
- Bottom End (67)
- Cold Air Intake (9)
- See All
- Exhaust
-
Exhaust
- Hardware (54)
- Manifold Hardware (91)
- Manifolds (101)
- Mufflers & Pipes (485)
- Exterior Trim
-
Exterior Trim
- Grill Components (55)
- Moldings (233)
- Fuel System
-
Fuel System
- Accelerator Com…(154)
- Carburetor Comp…(351)
- Carburetors (145)
- Chemicals & Addi…(11)
- See All
- Ignition System
-
Ignition System
- Performance Ign…(359)
- Stock Ignition (250)
- Interior Hard Parts
-
Interior Hard Parts
- Ash Trays & Ligh…(31)
- Console Parts (124)
- Consoles (51)
- Door Components (266)
- See All
- Interior Soft Goods
-
Interior Soft Goods
- Carpet (870)
- Door Panels & C…(827)
- Headliner Compo…(493)
- Insulation and…(149)
- See All
- Lifestyle Products
-
Lifestyle Products
- Apparel (242)
- Gift Certificates (7)
- Home & Office D…(173)
- Jewelry (54)
- See All
- Literature, Multimedia
-
Literature, Multimedia
- Literature (465)
- Software (16)
- Video (23)
- Rear End
-
Rear End
- Axle Shafts & Pa…(42)
- Differential (79)
- Differential Cov…(14)
- Differential Har…(84)
- See All
- Steering
-
Steering
- Center Drag Link (6)
- Idler Arms (10)
- King Pin Sets & P…(1)
- Pitman Arms (11)
- See All
- Suspension
-
Suspension
- Chassis (1)
- Chassis Bracing (106)
- Chassis Hardware (69)
- Front Suspension (404)
- See All
- Tools
-
Tools
- Auto Body Tools (190)
- Brake Tools (29)
- Cleaning Tools (5)
- Creepers & Seating (4)
- See All
- Transmission
-
Transmission
- Automatic Trans (594)
- Bellhousing Comp…(33)
- Clutches & Parts (190)
- Fluids & Additives (12)
- See All
- Weatherstrip
-
Weatherstrip
- Body Gaskets & S…(67)
- Complete Seal Kits (12)
- Convertible Seals (27)
- Door Seals (43)
- See All
- Wheel & Tire
-
Wheel & Tire
- Accessories (27)
- Hardware (134)
- Tires (95)
- Wheel Covers (190)
- See All
America's First Choice in Restoration and Performance Parts and Accessories