What is a 402 big block Chevy?

Introduced in 1970, the 402 cu in (6.6 L) was a 396 cu in (6.5 L) bored out by 0.03 in (0.76 mm). Despite being 6 cubic inches (98 cc) larger, Chevrolet 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.

How much horsepower does a 402 Chevy big block have?

Chevy 402 big block have horsepower that is 375 at 5,600 rpm. Power is provided by an engine that produces 415 feet of Torque from 3,600 rpm. Also, engines with a dyno show a horsepower rating of over 400.

Did GM make a 402 big block?

The Chevy 402 big block is a Big Block Chevy (BBC) engine created in the 1970s. The Chevy 402 engine is now mainly found in American muscle cars, such as the Chevrolet Camaro and Monte Carlo, and trucks and other vehicles big enough to hold the engine.

What liter is a 402 big block?

From 1965 until 1974, Chevrolet's big blocks were called Mark IVs; among these was a 6.6-liter, also known as the 402.

Is the 402 BBC a good engine?

72 402 is a low perf cast crank 2 bolt engine with those strange low compression heads that don't look like the 454 open chamber heads. In stock form it's a boat anchor, but with a bit of mild porting, a cam, and headers it can make an old Chevy go pretty good. The problem is it can also cost a bit to rebuild it.

Teardown of a Chevy 396/402 Big Block for a 1970 Camaro RS/SS Rebuild - MuscleCar S6, E5

When did the 396 become a 402?

As for your question, in 1970 all "SS 396" Chevelles came standard with a 402-inch big block, as Chevy bored the engine . 030-over from 4.09 to 4.13 piston size.

Did Chevy make a 402 small block?

402 Small Block Chevy Pump Gas Engine $10,450

This 402 "Real Street" Smallblock Has A Stronger Shortblock That Will Really Take A Beating! Beefier Components Means That It Will Work Well With Up To A 200HP Nitrous Kit ... Now You Can Have Your Cake And Eat It!

What is the biggest Chevy big block?

The ZZ632/1000 is a 632-cubic-inch V-8 delivering 1,004 horsepower. DETROIT – Chevrolet Performance today introduced the ZZ632/1000* crate engine — the largest and most powerful crate engine in the brand's history. The naturally aspirated 632-cubic-inch V-8 produces 1,004 horsepower and 876 lb-ft of torque.

What is the smallest big block Chevy ever made?

The smallest-displacement small-block V-8 ever produced included a 262-cubic-inch (4.3L) version used in the mid-Seventies – the same displacement shared by the current small-block-based 4.3L V-6. The most powerful small block ever produced is the LS9 engine used in the current Corvette ZR1.

What is a Chevy Rat motor?

Chevrolet Division, General Motors. That 454 was a member of the engine family known by racy types as the Rat Motors, so called because the small-block Chevy V8s were known among the same gasoline-scented folks as the Mouse Motors.

What is a 396 big block?

Chevrolet developed its big block 396-cubic-inch V8 engine in response to the big engines powering the Oldsmobile 4-4-2 and Pontiac GTO. Beginning in 1965, the 396 engines powered Chevelles, Corvettes and El Caminos. Chevy phased out the 396 in 1969.

What car came with a 572?

For 2022, the COPO Camaro is available with a gigantic 572-cubic-inch (9.4-liter) big-block V-8, which Chevy says "channels the spirit of the original 1969 COPO Camaro." Chevy didn't reveal horsepower figures for the 572, but said that it uses a cast-iron block with aluminum heads, a forged steel crankshaft and ...

How much is a 396 big block worth?

While a forged GM crank for a 454 could cost as much as $400 today, a forged 396 crank sells for about $75. And a rebuildable 396 short-block will usually only set you back less than $200. While a 454 short-block could fetch $500 easily.

What size engine is a big block?

Displacement: Big block engines tend to have displacements of 400 cubic inches or more. There are exceptions to this rule, such as the Chevy 396 engine which is referred to as a big block engine due to its architecture.

What is the bore and stroke of a Chevy 396?

The Chevrolet 396 has a stroke of 3.76 inches and a bore of 4.094 inches. This bore and stroke combination in conjunction with different pistons and cylinders heads produced compression ratios for the 396 ranging from 9.0 to 11.00, again depending on the engine's intended applications.

What is the strongest Chevy engine?

As the power behind the 2019 Corvette ZR1, the new supercharged 6.2L LT5 represents the pinnacle of Chevrolet's performance: It's the most powerful engine ever offered in a Chevy production vehicle.

What's the best big block engine?

What is a 396 engine?

The 396 cu in (6.5 L) V8 was introduced in the 1965 Corvette as the L78 option and in the Z16 Chevelle as the L37 option. It had a bore x stroke of 4.094 in × 3.760 in (104 mm × 95.5 mm), and produced 375 bhp (380 PS; 280 kW) at 5600 rpm and 415 lb⋅ft (563 N⋅m) of torque at 3600 rpm.

When did the Chevy 409 come out?

The 409 was introduced at the end of 1961. With a bore of 4.3125 inches and a stroke of 3.5 inches it had a solid lifter cam, a single Carter AFB, and was rated at 360 hp. Due to the late introduction, there were just 142 Impala SS 409 cars produced, making them very rare.

What is Chevy firing order?

Big Block Chevy Firing Order

It is 1-8-4-3-6-5-7-2. Big-block Chevy (BBC) V8 engines have a similar firing order to SBC V8 engines; 1-8-4-3-6-5-7-2.

Is a Chevy 396 really a 402?

Although the 402 was a regular - albeit not promoted - big-block production engine, many people don't know that Chevrolet actually built five big-block engines in addition to the popular 396-427-454 engines. These include the 402 that we speak of and a 366-incher used in medium-duty trucks and school buses.

What is a 496 big block?

The 496 Ci Engine is a top-notch Chevy engine designed for motor boats. The Big Block Chevy (BBC) model is a large, high-performing engine with 496 cubic inches. Adjustments are done by adding and tweaking different engine parts and engine dimensions.

What liter is a 454 big block?

For many years the 454 (7.4-liter) V8 was the top choice from GM, while Ford had the mighty 460 (7.5-liter) V8.

Is the Chevy 6.2 a big block?

The 6.2L engine could be described as a 6.2L big-block modular. Most big-block engines have more than 400 cubic inches of displacement and they weigh more. And the small-block engines have a smaller displacement. The 6.2L engine, though, fits into a 4.02-inch bore.