396 in 65 or 66?

[MalibuKasey]

This may be a dumb question.... but just curious really. Did Chevy put a 396 in any of there trucks in 65 or 66? I know individuals have.... I know they tossed a 409 or two in em....

[kieth]

No none in 3/4 tons or 1/2 tons up to 66 , maybe one in a 2 ton but I am sure they did not in GMCs period, I think the 327 in 66 Chevrolet was the largest engine available and maybe only a 283. ?

[1Bad62Pro/Street]

Here you go Bud.
http://www.ajgeneral.com/bbc_block_casting_numbers/
1958 marked the year Chevrolet brough out the 348 C.I.D. V-8.This block was completely different from the small block Chevy,it also marked the begining of the Big Block Chevrolet Family.The casting numbers can be found on the rear drivers side flange that meets with the tranny bellhousing.Date codes can be found on either the top center of the bell housing flange or the passenger side of the block near the freeze plug locations.

The famed 409 was out in 61,and at first glance can be had to distinguise from the 348.Casting numbers and date codes are the best way to find out.1961 was also the last year on the 348 in passenger cars but,was used later in trucks and buses.


The 427 Mystery Motor showed up at the NASCAR tracks in 63.None of the caracheristics of the 348 or the 409 were present with the new big block,like the "W" shaped heads.The first of the Mark IV engines debuted as the 396 in 65.63 was the last year of the 409 in passenger cars,seeing limited service with some 65 full sized Chevys..The Mark IV can still be seen in service today.

Available in either standard or special High Performance versions.Both versions used the same casting numbers in the early years,the difference being weather or not the block was drilled and tapped for 4 bolt main bearing caps and is the only way to tell the diiference.

Appearing in 1966,to the approval of Chevy fans and the detriment of the competition was the 427.Reaching it's zenith in 69 as an exotic all aluminum block and heads high performance engine known as the ZL-1.A hand full of Corvettes and Camaros received this option and that makes then extremely difficult to find today.Most ended up as drag racing engines and so not many survived.

Mark IV engien have also been converted to truck blocks,or "tall blocks".Although essentially the same as other big block Chevys,they feature a longer crankshaft centerline to deck distance and are not normally considered desirable for passenger cars.The only was to know is to check the cast numbers.

1969 was officially the last year of the 396 but,many cars were know as 396 SS's afterward.A slightly larger bore gave the 396 a displacment of 402 CID for the 1970 model year.Many of these vehicles were marketed with 396 SS emblems on the fenders and 402 on the sticker under the hood.To make things more interesting Chevrolet marketed some of the 402 as Big Block 400 engines,like in 71.So if you have one of these engines,it's a 402 or a slightly bored out 396,you get the point.As a result Chevrolet described the big block as a 400 4 barrel and the small block as a 400 2 barrel.

Appearing in 1970,the 454 boasted the highest advertised horsepower and torque ratings with the LS-6 @ 450 HP.There were plans for a LS-7 with 465 HP and they could be purchased over the counter,they were never reportedly installed in any applications.

The decline of the horsepower/cubic inch wars came about with insurance rates and government regulations causing all sorts of grief.The 402/400 was discontinued after 1972 and the 454 was no longer used in passenger cars after 1976 and not installed in trucks after 1979.In 1983 Chevrolet started to install the 454 into their light and medium duty trucks.


Casting # CID Year Model Applications Comments
340220 427 68-76 Truck

361959 454 73-75 Chevelle

361959 454 73-76 Passenger

361959 454 75-85 Truck Light Duty
364776 427 68-84 Truck Heavy Duty
364779 366 68-88 Truck Heavy Duty
473478 427 68-84 Truck Heavy Duty
3732811 348 58 Passenger

3751872 348 58 Passenger

3755011 348 59-61 Passenger

3771705 348 59-61 Truck & Replacement

3782870 427 68-76 Truck

3788068 409 62 Passenger

3795623 409 61 Passenger

3798962 348 62-65 Truck & Replacement Has X on Block
3830814 409 63 Passenger Has X on Block
3844422 409 64 Passenger Has X on Block
3855961 396 65-67 Passenger 325 HP,2 bolt mains
3855961 427 66 Corvette 390,425 HP,2 & 4 bolt mains
3855961 396 66 Chevelle 325,360,375 HP
3855961 396 68-69 Truck Light Duty
3855962 396 65 Corvette,Passenger 425 Hi-Perf
3855962 396 65 Chevelle Z16 Hi-Perf
3855962 396 66 Passenger 375 HP,Hi-Perf
3855962 396 66 Chevelle 360 HP,4 bolt main
3857655 348 62-65 Truck Has X on Block
3857656 409 65 Passenger Has X on Block
3869942 427 66 Corvette & Passenger 390,425 HP
3902406 396 67 Chevelle 2 & 4 Bolt Main
3902406 396 67 Camaro 2 & 4 Bolt Main
3902406 396 67 Passenger 2 & 4 Bolt Main
3902466 396 66-69 Passenger,Chevelle

3902466 396 67-69 Camaro

3902466 396 68-68 Nova

3904351 427 67 Passenger 385 HP
3904351 427 67 Corvette 390,400,430,435 HP
3904354 366 66-67 Truck

3916319 366 68-85 Truck Heavy Duty
3916321 427 67 Corvette Late 1967
3916321 427 68 Passenger 2 & 4 Bolt Main
3916321 427 68 Corvette 390,400,430,435 HP
3916323 396 68 Chevelle 2 & 4 Bolt Main 325,350,375 HP
3916323 396 68 Camaro 325,350,375 HP
3916323 396 68 Nova 325,350,375 HP
3916323 396 68 Passenger 2 Bolt Main
3925521 366 68-85 Truck Heavy Duty
3935439 427 68 Corvette 430,435 HP
3935439 427 69 Passenger 385,425 HP
3935439 427 69 Corvette 390,400,430,435 HP
3935440 396 68 Pass,Chevelle,Camaro,Nova

3937724 366 68-85 Truck Heavy Duty
3937726 427 68-84 Truck Heavy Duty
3955270 427 69 Corvette 390,400,430,435 HP
3955270 427 69 Passenger 385,425 HP
3955272 396 68-69 Truck Light Duty
3955272 396 69 Pass,Chevelle,Camaro,Nova

3955272 402 70-72 Truck Light Duty
3955274 366 68-85 Truck Heavy Duty
3955276 427 68-84 Truck Heavy Duty
3963512 427 68-69 Passenger 385,425 HP
3963512 427 69 Chevelle,Camaro COPO (Central Office Production Order)
3963512 427 69 Corvette Late 69
3963512 454 70 Corvette,Passenger 360,390 HP
3963512 454 70 Chevelle LS-6 450 HP
3963512 454 70-71 Pass,Chevelle, Monte Carlo

3963512 454 71 Corvette 365,425 HP
3963513 454 73-75 Chevelle

3963513 454 73-76 Passenger

3968854 396 68-69 Truck Light Duty
3968854 396 68-69 Pass,Chevelle,Camaro,Nova

3968854 402 70-72 Pass,Chevelle,Camaro,Nova

3968854 402 70-72 Truck Light Duty
3968852 366 68-85 Truck Heavy Duty
3968854 402 69-72 Pass,Chevelle,Camaro 4 bbl Carb,2 & 4 Bolt Main
3968854 402 70 Nova 2 & 4 Bolt Main
3968854 400/402 70-72 Truck 2 & 4 Bolt Main
3969858 427 68-84 Truck Heavy Duty
3995623 409 61 Passenger all
3999289 454 72 Corvette 270 HP
3999289 454 72-75 Chevelle

3999289 454 72-76 Passenger

3999289 454 73-79 Truck

3999290 396 68-69 Truck Light Duty
3999290 400/402 70-72 Truck

3999290 402 70-72 Truck Light Duty
3999290 402 72 Pass,Chevelle,Camaro,Nova

3999290 402 72 Pass,Chevelle,Camaro,Nova 4 bc
3999293 366 68-85 Truck Heavy Duty
3999293 454 73-75 Pass,Chevelle

3999294 427 68-84 Truck Heavy Duty
6272177 402 72-73


14015445 454 75-87 Truck Light Duty
396 and 402The 396-cubic-inch (6.5 L) V8 was introduced in the 1965 Corvette as the L78 option and in the Z16 Chevelle. It had a bore of 4.094 in (104.0 mm) and a stroke of 3.76 in (96 mm), and produced 375 hp (280 kW) and 415 lb·ft (563 N·m). This version of the 396 was equipped with four bolt main bearing caps and was very comfortable with being operated in the upper 6000 rpm range.

Introduced in 1970, the 402-cubic-inch (6.6 L) was a 396-cubic-inch bored out by 0.030 in (0.76 mm). Despite the fact that it was 6 cubic inches (98 cc) larger, Chevy continued marketing it under the popular "396" label in the smaller cars while at the same time labeling it "Turbo-Jet 400" in the full-size cars.

Power rating(s) by year:

1965: 375 hp (280 kW)/425 hp (317 kW)
1966: 325 hp (242 kW)/350 hp (260 kW)/360 hp (270 kW)/375 hp (280 kW)
1967: 325 hp (242 kW)/350 hp (260 kW)/375 hp (280 kW)
1968: 325 hp (242 kW)/350 hp (260 kW)/375 hp (280 kW)
1969: 265 hp (198 kW)(2bbl)/325 hp (242 kW)/350 hp (260 kW)/375 hp (280 kW)
1970: 330 hp (250 kW)/350 hp (260 kW)/375 hp (280 kW)
1971: 300 hp (220 kW)
1972: 240 hp (180 kW)
Used in:

1965 Chevrolet Corvette
1965–1972 Chevrolet Chevelle
1967–1972 Chevrolet Camaro
1968–1970 Chevrolet Nova
1970–1972 Chevrolet Monte Carlo, Chevrolet Trucks
1965–1972 Chevrolet Biscayne, Chevrolet Bel Air, Chevrolet Impala, Chevrolet Impala SS, Chevrolet Caprice
Production codes

396
LS-34: produced 1966-9, 10.25:1 compression, Holley (Q-jet 1968-9) carburetor, hydraulic lifters, oval port closed chamber heads, forged steel crankshaft, and two-bolt main caps. It produced 350 to 360 hp (260 to 270 kW).[2]
L-35: produced 1965-9, had 10.25:1 compression, Q-jet carburetor, forged steel (1965-7) or nodular iron (1968-9) crankshaft, hydraulic lifters, oval port closed chamber heads, and two-bolt main caps. It produced 325 hp (242 kW).[2]
L-66: produced 1969, rare two-barrel carburetor, 9:1 compression, nodular iron crankshaft, hydraulic lifters, oval port closed chamber heads,and two-bolt main caps. It produced 265 hp (198 kW).[2]
L-78: produced 1965-9, had 800 cfm Holley carburetor, 11:1 compression, forged pop-top pistons, aluminum high-rise intake manifold, steel crankshaft, solid lifter cam (same as the L-72; except in 1965 Z16 Chevelle), rectangular ("square") port closed chamber heads, and four-bolt main caps. It produced 375 hp (280 kW) in mid-size cars, 425 hp (317 kW) in Corvettes.[2]
402
LS-3: produced 1970-2, 10.25:1 (1970) or 8.5:1 (1971) compression, hydraulic lifters, nodular iron crankshaft, and two-bolt main caps. It produced 330 hp (250 kW) (1970), 300 hp (220 kW) (1971), 210 or 240 hp (160 or 180 kW) (1972 net horsepower, single or dual exhaust).[2]
L-34: produced 1970. Same as 396 ci LS-34.
L-78: produced 1970. Same as 396 ci.
427
LS-1: produced 1969, 10.25:1 compression, Q-jet carburetor, oval port closed chamber heads, hydraulic lifters, nodular iron crankshaft, and two-bolt main caps. It produced 335 hp (250 kW).[3]
L-36: produced 1966-9, had 10.25:1 compression, Holley or Q-jet carburetor, nodular iron crankshaft, hydraulic lifters, oval port closed chamber heads, and two-bolt main caps. It produced 385 hp (287 kW) in full-size cars, 390 hp (290 kW) in Corvettes (by exhaust system).[3]
L-68: produced 1967-9, had 10.25:1 compression, Tri-Power, nodular iron crankshaft, hydraulic lifters, aluminum oval port closed chamber heads, and two-bolt main caps. It produced 400 hp (300 kW), and was used in Corvettes.[3]

366The 366 Big block V-8 (6.0 L) gasoline engine was used only in Chevrolet Medium duty trucks and in school buses. It had a bore of 3.935" and a stroke of 3.760". This engine was made from the 1960s until the mid-1990s. The 366 used 3 compression rings on the pistons as it was designed from the very beginning a truck engine. The 366 was only produced as a tall deck engine with a 0.400" taller deck than the 396, 402, & 454 short deck big blocks.


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[Clyde65]

366 were put in large trucks, but none in 1/2 or 3/4 tons.