How much horsepower does a 307 Chevy have?

Power. When it was introduced in 1968 the 307 was rated at 200 horsepower at 4,600 rpm and 300 foot pounds of torque at 2,400. However, the federal government’s emissions regulations of 1972 saw the 307 de-rated to 115 horsepower.

What years did Chevy make the 307?

The Chevy 307 V-8 engine was introduced in 1968 to replace the Chevy 283 V-8. This engine was designed to function well in low-performance vehicles such as sedans and other family-friendly cars. This engine only lasted five years, with the last model being produced in 1973.

How much HP can you get out of a 307?

Combine these parts with a good 600 to 750 cfm Holley carburetor, an HEI distributor, and a set of long-tube headers and your 307 should make around 325 to 350 horsepower, perhaps even a bit more.

Did GM make a 307?

The Chevy 307 V8 engine came along in 1968 to replace the Chevy 283 V8. After 1973 the 307 was chopped from the GM line engine lineup. One interesting fact regarding the Chevy 307 V8 was that it was also manufactured by GM for boat use and sold by the Outboard Marine Corporation as a high performance marine engine.

What is the difference between a 305 and 307?

307 uses a 3.25(same as 327). the 305 uses a 3.736″ bore where as a 307 uses a 3.875 bore. a 305 is basically a destroked 350 and a 307 is basically a stroked 283. all the bolt on parts such as heads,intake, oil pan,water pump,cam,timing chain, etc, etc will interchange as it will with basically any other small block.

Is a 307 engine good?

theres nothing wrong with a 307 i’ve had a few. i wouldn’t build one for racing but there is nothing wrong with them. they’re just as reliable as the rest of the SB’s. Yep, and they look like any Generation 3 Small Block.

Can you put 307 heads on a 350?

For a 350, you’d be gimping it pretty bad with 307 heads. 305 heads would be a better choice than 307’s, the whole 307 engine was pretty lame. They will work, but will not be very efficient. Low power and crappy mileage.

What is a 406 stroker?

A 406 isn’t a stroker, it’s just a .030 over 400. That said, the 2 bolt blocks are normally stronger than the 4 bolt blocks. At a minimum use a good main stud kit. Ideally you would have 4 bolt splayed caps installed. When the blocks break, they crack from the front main journal up into the camshaft journal.

Will Chevy 400 heads fit a 350?

They are most likely cracked. They are decent flowing head but with 76cc chambers your compression ratio will be low.