The Texas Speed 632ci Big Block Chevy Long Block is a dyno tested 632 cubic inch assembly built on a Dart engine block with AFR Enforcer aluminum cylinder heads and a 255/265 hydraulic roller camshaft on a 110 degree lobe separation. At 10.0:1 compression, Texas Speed reports a peak of 760 horsepower and 800 lb-ft of torque on the dyno. The long block ships with valve covers and an intake manifold installed.
Texas Speed offers an optional carbureted completion kit or an EFI completion kit for this engine, selected from the Completion Kit option. Completion kit components ship separately and are installed by the customer; ignition, fuel system and induction parts are not pre-installed on the engine. Distributor timing, fuel system setup, EFI configuration and final tuning may be required, along with vehicle-specific fuel, cooling, exhaust and accessory components. An engine cradle, shipping crate and Royal Purple break-in oil are included with the kit.
Specifications
- Engine platform: Big Block Chevy
- Displacement: 632 cubic inches
- Block: Dart engine block
- Cylinder heads: AFR Enforcer aluminum
- Compression ratio: 10.0:1
- Camshaft: 255/265 hydraulic roller
- Lobe separation angle: 110 degrees
- Dyno tested peak horsepower: 760 HP
- Dyno tested peak torque: 800 lb-ft
- Installed on engine: Valve covers and intake manifold
- Induction options: Carbureted or EFI completion kit, selected at ordering
- Completion kit installation: Customer installed, shipped separately
Kit Includes
- Texas Speed 632 BBC long block with hydraulic roller camshaft, valve covers and intake manifold (TSP-BBC632LB-760)
- TSP small block and big block Chevy engine cradle (TSP-ALL10157)
- Short block engine shipping crate (TSP-SDCrateSB)
- Royal Purple 10W-30 break-in oil, qty 16 (RYP-11487)
- Carb or EFI completion kit only when selected from the Completion Kit option
Ordering Options
Choose from the Completion Kit option when ordering: long block only, with the Texas Speed 632 EFI Completion Kit, or with the Texas Speed 632 Carb Completion Kit. Completion kits ship separately from the engine and are installed by the customer.
Note: Ignition, fuel system and induction components are not pre-installed. Distributor timing, fuel system setup, EFI configuration and final tuning may be required, and additional vehicle-specific fuel, cooling, exhaust and accessory parts may be needed. Dyno results vary with fuel quality, exhaust, tuning and supporting components.
Vehicle Applications
Engine family: Big Block Chevy. Vehicle list reflects the classic Chevrolet applications published by Texas Speed for this engine; vehicle-specific accessories, exhaust and fuel system parts are not included.
Chevrolet Bel Air
- 1965 Chevrolet Bel Air
- 1966 Chevrolet Bel Air
- 1967 Chevrolet Bel Air
- 1968 Chevrolet Bel Air
- 1969 Chevrolet Bel Air
Chevrolet C10
- 1968 Chevrolet C10
- 1969 Chevrolet C10
- 1970 Chevrolet C10
- 1971 Chevrolet C10
- 1972 Chevrolet C10
- 1973 Chevrolet C10
- 1974 Chevrolet C10
- 1975 Chevrolet C10
- 1976 Chevrolet C10
- 1977 Chevrolet C10
- 1978 Chevrolet C10
- 1979 Chevrolet C10
- 1980 Chevrolet C10
- 1981 Chevrolet C10
- 1982 Chevrolet C10
- 1983 Chevrolet C10
- 1984 Chevrolet C10
- 1985 Chevrolet C10
- 1986 Chevrolet C10
- 1987 Chevrolet C10
Chevrolet Camaro
- 1967 Chevrolet Camaro
- 1968 Chevrolet Camaro
- 1969 Chevrolet Camaro
- 1970 Chevrolet Camaro
- 1971 Chevrolet Camaro
- 1972 Chevrolet Camaro
Chevrolet Caprice
- 1966 Chevrolet Caprice
- 1967 Chevrolet Caprice
- 1968 Chevrolet Caprice
- 1969 Chevrolet Caprice
- 1971 Chevrolet Caprice
- 1972 Chevrolet Caprice
- 1973 Chevrolet Caprice
- 1974 Chevrolet Caprice
- 1975 Chevrolet Caprice
- 1976 Chevrolet Caprice
Chevrolet Chevelle
- 1965 Chevrolet Chevelle
- 1966 Chevrolet Chevelle
- 1967 Chevrolet Chevelle
- 1968 Chevrolet Chevelle
- 1969 Chevrolet Chevelle
- 1970 Chevrolet Chevelle
- 1971 Chevrolet Chevelle
- 1972 Chevrolet Chevelle
- 1973 Chevrolet Chevelle
Chevrolet Corvette
- 1965 Chevrolet Corvette
- 1966 Chevrolet Corvette
- 1967 Chevrolet Corvette
- 1968 Chevrolet Corvette
- 1969 Chevrolet Corvette
- 1970 Chevrolet Corvette
- 1971 Chevrolet Corvette
- 1972 Chevrolet Corvette
- 1973 Chevrolet Corvette
- 1974 Chevrolet Corvette
Chevrolet El Camino
- 1965 Chevrolet El Camino
- 1966 Chevrolet El Camino
- 1967 Chevrolet El Camino
- 1968 Chevrolet El Camino
- 1969 Chevrolet El Camino
- 1970 Chevrolet El Camino
- 1971 Chevrolet El Camino
- 1972 Chevrolet El Camino
- 1973 Chevrolet El Camino
- 1974 Chevrolet El Camino
- 1975 Chevrolet El Camino
Chevrolet Impala
- 1965 Chevrolet Impala
- 1966 Chevrolet Impala
- 1967 Chevrolet Impala
- 1968 Chevrolet Impala
- 1969 Chevrolet Impala
- 1971 Chevrolet Impala
- 1972 Chevrolet Impala
- 1973 Chevrolet Impala
- 1974 Chevrolet Impala
- 1975 Chevrolet Impala
- 1976 Chevrolet Impala
Chevrolet Monte Carlo
- 1970 Chevrolet Monte Carlo
- 1971 Chevrolet Monte Carlo
- 1972 Chevrolet Monte Carlo
- 1973 Chevrolet Monte Carlo
Chevrolet nova
- 1968 Chevrolet nova
- 1969 Chevrolet nova
- 1970 Chevrolet nova
- 1971 Chevrolet nova
- 1972 Chevrolet nova
- 1973 Chevrolet nova
- 1974 Chevrolet nova
Vehicle applications reflect the fitment published by Texas Speed & Performance for this part number. Confirm your engine and cylinder head configuration before ordering.
FAQ
How much power does the Texas Speed 632 BBC hydraulic roller long block make?
Texas Speed dyno tested this 632 cubic inch big block Chevy long block at a peak of 760 horsepower and 800 lb-ft of torque. Results vary with fuel quality, exhaust system, tuning and supporting components.
What is included with the 632 BBC long block?
The long block is built on a Dart block with AFR Enforcer aluminum heads and a 255/265 hydraulic roller camshaft, and it ships with valve covers and an intake manifold installed. The kit also includes an engine cradle, a shipping crate and Royal Purple break-in oil.
What is the difference between the carb and EFI completion kits?
The Texas Speed 632 Carb Completion Kit finishes the engine for a carbureted setup, while the 632 EFI Completion Kit finishes it for electronic fuel injection. Either kit is optional, ships separately from the long block and is installed by the customer.
Is the engine ready to run out of the crate?
No. Ignition, fuel system and induction components are not pre-installed. Distributor timing, fuel system setup, EFI configuration and final tuning may be required, and vehicle-specific fuel, cooling, exhaust and accessory parts may be needed.
How does this compare to the Texas Speed 632 solid roller long block?
This version uses a 255/265 hydraulic roller camshaft with AFR Enforcer heads at 10.0:1 for 760 horsepower. The solid roller version uses a 270/278 solid roller cam, AFR 2020-TI heads and a T&D shaft rocker system for 835 horsepower, and requires periodic valvetrain inspection.
