How much HP can you get out of a Chevy 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.

Are 307 engines 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.

What's the difference between a 305 and a 307 Chevy?

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.

How far can you bore a 307 Chevy?

60 over is as far as you can bore the 307 block.

Will a 350 intake fit a 307?

Registered. Yeah all that stuff will fit right on a 350. The one thing I wouldn't put on a 350 is the heads.

Budget 307 Small Block Chevy Build

Can you put 327 heads on a 307?

Way better performance than the stock heads, 2-barrel, and stock cam. So, yes, it is possible. Need the head casting number of the ones you wish to buy. If they are 2-barrel heads, forget it!

Can you put 350 heads on a 307 engine?

of course you can. you can use any pre-1986 small block heads on your motor and not have to change the intake. the biggest chamber 350 heads should have about the same chamber size too.

How much horsepower does a 307 small block have?

For our collaborative efforts-not to mention the efforts of the new parts-the 307 put out a very respectable 315hp at 5,200 rpm and 330 lb-ft torque at 3,800 rpm.

Can you build a 307 Chevy?

It won't make as much as a 350 engine just because of its smaller displacement, but you can still build a decent street engine out of this 307.

Will a 350 crank fit a 307 block?

Re: 350 crank in 307

Yes, but you have to bore the block to 4" and use 350 pistons, which gives you a 350 anyway. You are better off getting a 350 block, since boring a 307 to 4" can lead to problems with the cylinder walls. 350 cores are cheap, it's not worth the risk unless you are serious about being different.

Why did Chevy make 307 engines?

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.

What size motor is a 307?

Lower Engine

The 307 used a 283 block with casting numbers 3914635, 3932371, 3932373, 3956632 and 3970020. The block used 3.875-inch cylinder bores, 5.7-inch rods and a 327 crankshaft with 3.25-inch arms (casting numbers 39110011 and 31110001).

How much power can you get out of a 307 Chevy engine?

Power. In 1968, the 307 was rated at 200 horsepower at $4,600 rpm while 300 foot lb of torque could be achieved at 2,400 lbs. of displacement. Despite this, the federal government reduced the horsepower rating to 115 in 1972 based on regulations regarding emissions.

What cars had the 307 motor?

Oldsmobile used the popular LV2, a 307-cubic-inch (5.0 L) engine, commonly known by the VIN code "Y", from 1980-1990. It was used by every domestic GM automobile marque except for GMC and Saturn.

How much does a 307 engine weight?

How Much Does A Chevy 307 Weigh? There is 1569 kilograms of capacity and 3459 ounces of weight within the Chevy El Camino III 307 V8.

How much HP does a 305 V8 have?

What are the specs for a 305 Chevy engine? It's a 305 cubic inch (5.0 liter) small-block V8, featuring a 3.743-inch bore. Depending on the year and engine sub-model, you can see HP ranging from about 160 to 230.

What is a Chevy 302?

The 302 cubic-inch engine was developed as the powerplant for the first-generation Z/28 Camaro (model years 1967 through 1969). It utilized the block from a 327 cubic-inch engine, and a crankshaft from a 283 cubic-inch engine, resulting in a 302.4 cubic-inch displacement.

What is a Chevy 305?

The Chevy 305 engine refers to the 305 cubic inch V-8 displacement engine, which was developed for use in autos produced between 1976 and 1992. Overall, the engine was not very powerful, reaching only 220 to 230 horsepower at its most powerful.

Will 305 heads fit a 350?

Virtually any 350 heads will work on a 305. The high compression 350 heads are similiar in combustion chamber size & intake valve size to the 305 heads & will give a 305 the same performance as if using 305 heads.

Are Chevy 350 heads interchangeable?

Regarding physical interchange: Yes, the heads in this group physically bolt on to your existing short-block but require a unique intake manifold and corresponding intake-gasket set because the center two intake-manifold-to-cylinder-head attaching bolts are drilled at a different angle than traditional small-block ...

How much torque can a Chevy 350 make?

How Much Torque Does A 350 Chevy Have? The original Chevy 350 proved its capability by offering 295 HP at 380 lbs ft of torque. It is also interesting to know that the exact displacement of the engine is 350. This measurement is 85 cubic inches (5 cm).

What is a Chevy 327?

The Chevrolet 327-cubic-inch V8 originated with the small-block family of engines that first appeared in 1955 with a 265 cubic inch powerplant. Following with a 283 cubic inch version that appeared in 1957, the mighty 327-inch small block made its debut in 1962.

How much torque does a 350 Chevy have?

Chevy 350 Engine Specs

Rated at up to 380 pound-feet of torque, this engine is great for towing; however, fuel economy is low and -- depending on the compression ratio -- it might require premium fuel.

What years did Chevrolet make the 307 engine?

Chevrolet produced the 307 from 1968-73, which means there are a lot of cores out there waiting to be rescued and built. Chevrolet never did a high-performance 307 like it did with the 283.