How Much Horsepower Can You Get Out Of A 327?

What is the most powerful small block engine?

LS9 engineThe most powerful small block ever produced is the LS9 engine used in the current Corvette ZR1.

It is rated at 638 horsepower, making it the most powerful engine ever produced by GM for a regular-production car..

Is a 5.3 engine a 327?

The 5.3L is not a 327 or even close to a 327. Not even related to a 327. The LS1 is 347.

Is a 327 a good engine?

The 327 worked very well with the carburetors, pistons, cylinder heads, intake manifolds and camshaft used that were available in the late 60’s, and its big horsepower-per-cubic-inch potential made it a favorite among enthusiasts for both the street and strip.

Will 350 heads fit on a 327?

Bill, 350 heads will work on your 327. Avoid 305 heads like the plague, though. You will want to find some with similar size combustion chamber and valve size/port size in order to keep at least the same power output your 327 had when new.

Are 327 and 350 blocks the same?

The difference in the displacement comes from the crankshaft stroke. The 327 uses a 3.25 inch stroke, where the 350 uses a longer 3.48 inch stroke(thats what makes it bigger). Depending on the year of the block, the biggest difference in the block itself is the main journal size.

Are all SBC heads interchangeable?

All SBC gen I and Gen II heads will bolt onto the block. The LT1 and 4 heads are set up for reverse coolant flow(i.e. the water goes from the heads then through the block) so those aren’t what you want to use. The center bolt non-vortec heads(87-96) use a slightly different intake manifold.

Can you put Vortec heads on a 327?

The L31 Vortec heads will bolt onto any Gen I small block. Your 327 isn’t any different than any other Gen I small block built from 1955 thru 2002. The main difference with using the Vortec heads is the different intake bolt pattern as already mentioned.

Can you stroke a small journal 327?

Stroking a small journal 327 block with a 400 crank is slightly more involved than stroking it with a 350 crank as above. There are 2 ways to go with the turning of the mains on a 400 crank. I’m not terribly crazy about the first method, but it will work fine.

Why is a 327 better than a 350?

In the vehicle, it’s more of a matter of “gearing” than revs. A 327 with it’s shorter stroke would need shorter gears so it can GET to its revs, where a 350, with its slightly longer stroke and more torque output will pull a little taller gear than the 327 will.

What can you stroke a 327 to?

The 327 has a 4.00″ bore which is the same as a 350. You cans simply add a 350 (3.48″ stroke) crank to make a 350. For close to the same money, you can use a 400 (3.75″ stroke) crank which gives you a 383 with an .

Will a 327 crank fit a 350?

The 327 crank will not fit into the 350 block unless it is the post 67 327 crank with the large bearing size. With this crank all you need to do is use regular 327 parts such as pistons. I would use the larger balancer off of a 350 though as it has better dampening qualitys than the 327 balancer.

Is there a 327 4 bolt main?

No – GM never made a 4-bolt 327 for production use; many have been drilled and tapped for six extra splayed bolts with aftermarket main caps on the #2-3-4 journals by machine shops, but GM never made one.

What is the strongest Chevy engine?

6.2L LT5Our fastest crate engine ever 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.

How do you get the most horsepower out of a 327?

Re: What’s the most HP possible from a 327? ( Select a cam to yield the low end 80 percent torque bandwidth at no more than 2000-2200 RPM and spend to the limit of your budget on the heads, inlet, and exhaust system to get peak power.

How do you tell a 327 from a 350?

OldSub Measure the stroke. If the stroke is 3.25 its a 307 or 327. If its 3.48 its a 350.

How many cubic inches is a 327 bored 60 over?

A 30 over 327 is 331.6; 60 over is 336.6.

Can you stroke a 327 engine?

Yes you can. It has the same bore as a 350 so a 350 crank is easy but why not make it a 383 or 396 with a longer stroke. If you are replacing the crank and pistons go bigger.

Did Chevrolet ever make a 327 4 bolt main?

Re: 327 4-bolt main How rare? They never made a 327 4 bolt main block. You can make one with a large journal 327 crank in a 4 bolt 350 block due to the same bore that they have.

What is a 350 bored 60 over with a 400 crank?

60 over with a 400 crank is around a 388.

What is the difference between a 283 and 327?

There is a “wing” looking thingy above the front cover that sticks out of the block. On a 283 you can’t lay your finger in the indentation, on a 327 you can. Hard to explain but easy to see if you know the difference.

Add a comment