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Chevrolet 327 V8 Engine

The Chevy 327 V8 was first introduced in 1962 and was available with four different horsepower options depending on what type of fuel delivery and performance setup was available. The three initial carbureted models produced from 250 up to 340 horsepower. There was also a fuel injected model that produced 360 horsepower.

For 1963 the 327 options stayed the same until 1964 when the horsepower was increased to 365 bhp for the top end carbureted model (known as the L76) and the fuel injected model received a boost of 15 horsepower which put it at 375 bhp (known as the L84). In 1965, a 4 barrel carbureted 327 V8 known as the L79 that produced 350 horsepower was put into production which gave Chevy five different versions of the 327 to use in various automobiles. Also there were no fuel injection models of the 327 offered in 1965 and afterwards.

Buy 1966 the Chevy 327 was only produced in three different models because of the continuing popularity of the Chevy 396 and the introduction of the new Chevrolet 427 V8. Chevrolet however decided for 1967 to expand the lineup of 327 engines back to 5 different models like they had in 1965. The only big difference was now the low end 327 came with a 2 barrel carburetor which severely lowered the horsepower for the engine. 1969 was the last year for the 327 and by then there were only two models produced that created 210 and 235 horsepower. Today, engine parts for this motor are plentiful and can be found at any reliable auto parts store.

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Comments

1963 Impala sedan
I inherited a 1963 Impala sedan and a block from a 327 chevy small block bored 150 over. I would like to klnow what I need to do to crank out maximum power(a list would be great) and what you believe the current horse power if assembled to stand at.
#1 - Curtis Bryant - 10/08/2010 - 18:04
What year did GM offer the 327 with 275HP? more specifically in the 1964 Impala?
#2 - Dustin - 10/11/2010 - 09:12
what about specs on a 65 dump truck 327 engine
#3 - jerry - 04/07/2011 - 22:27
327 questions?
Hi I have a 1984 z28 camaro that has had a 327 put in it and ive looked up the codes and it was a 1965 engine but it has been bored 30 over, has double hump heads, and a small rv cam in it. just wondering what i'd be looking at as far as horse power/ torque? B-)
#4 - Jack Crow - 04/13/2011 - 22:18
So many 327s! Differences?
Ok, wow, so many different horsepower ratings. I want to know the differences. I have a 1966 Impala Sport Coupe (not SS) 327 with code HCH, which, by my research was a 327/275 w/ Holley 4v and Powerglide.

How does it differ from the other 327 made with 300hp? It looks like the compression was the same, yet it has 25 more hp and 5 lbs more torque.

Bhp was measured at 4800 rpm on the 327/275 and at 5000 on 327/300.

Can you help me figure out what parts were different among the carbureted 327s? Basically, I would like to convert my L30 to a L79 or perhaps even an L76.

If you can help, or at least get me going in the right direction, I would be very thankful!
#5 - Barry - 04/24/2011 - 12:58
mr
looking for 4x4 gearbox to fit 327
#6 - pik - 06/19/2011 - 05:51
327 impala
how much horse power is a 1967 327 with a 4 barrel carb on it?
#7 - Cody - 06/27/2011 - 15:11
Engine Number
I have a engine block with the numbers H-11 935 870 what size motor would this be?
#8 - connie rice - 06/27/2011 - 16:53
4 cyl
I would like to obtain achevy 1962, 4cyl engine for my chevy II Nova. If anyone knows about one for sale I'll be happy to be communicated
#9 - Victor Roviken - 08/03/2011 - 17:44
327 is a really badass engine i have a built one the i use for drag racing an i can fly
#10 - 21324 - 10/26/2011 - 08:42
Is a Gen V 427 internally balanced ? Casting # 10114184
#11 - Shawn Howard - 10/26/2011 - 22:28
300 HP
I have a 1968 4" bore stock 327. How do I get 300Hp?? I have a 600 CFM holly, performer intake what heads do i need??
kelly
#12 - kelvin maxfield - 11/16/2011 - 09:08
What is a map sensor used for on a 1983 cutlass
#13 - Leshawn James - 11/24/2011 - 15:57
If properly maintained,this 327's will out live us all. You'll never wear them out. Their built like a rock. . .
#14 - JV - 12/07/2011 - 23:25
mr
Id like to get holt of an 327php 5.4L engine Im south african live in pretoria gauteng in south africa if some one can direct me please
#15 - tommy - 12/24/2011 - 03:45
Is there anything special about a 327 870 block i am looking at one but not sure if there is any real advantage to one
#16 - Ger - 01/07/2012 - 21:14
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Engine Specifications

1962 - 1965 with 4 Barrel Carb
(Low End Horsepower Model)
Max Brake Horsepower - 250 @ 4400 rpm
Max Torque - 350 @ 2800 rpm
Stroke - 3.25
Bore - 4.001
Compression - 10.5
Firing Order - 18436572

1962 - 1968 with 4 Barrel Carb
(Mid Range Horsepower Model)
Max Brake Horsepower - 300 @ 5000 rpm
Max Torque - 360 @ 3200 rpm
Stroke - 3.25
Bore - 4.001
Compression - 10.5
Firing Order - 18436572

1962 - 1963 with 4 Barrel Carb
(High End Horsepower Model)
Max Brake Horsepower - 340 @ 6000 rpm
Max Torque - 344 @ 4000 rpm
Stroke - 3.25
Bore - 4.001
Compression - 11.25
Firing Order - 18436572

1962 - 1963 with Fuel Injection
Max Brake Horsepower - 360 @ 6000 rpm
Max Torque - 352 @ 4000 rpm
Stroke - 3.25
Bore - 4.001
Compression - 11.25
Firing Order - 18436572

1964 - 1965 with 4 Barrel Carb (L76)
(High End Horsepower Model)
Max Brake Horsepower - 365 @ 6200 rpm
Max Torque - 350 @ 4000 rpm
Stroke - 3.25
Bore - 4.001
Compression - 11.0
Firing Order - 18436572

1964 - 1965 with Fuel Injection (L84)
Max Brake Horsepower - 375 @ 6200 rpm
Max Torque - 350 @ 4600 rpm
Stroke - 3.25
Bore - 4.001
Compression - 11.0
Firing Order - 18436572

1965 - 1968 with 4 Barrel Carb (L79)
Max Brake Horsepower - 350 @ 5800 rpm
Max Torque - 360 @ 3600 rpm
Stroke - 3.25
Bore - 4.001
Compression - 11.0
Firing Order - 18436572

1966 - 1968 with 4 Barrel Carb
Max Brake Horsepower - 275 @ 4800 rpm
Max Torque - 355 @ 3600 rpm
Stroke - 3.25
Bore - 4.001
Compression - 10.5
Firing Order - 18436572

1967 - 1969 with 2 Barrel Carb
Max Brake Horsepower - 210 @ 4600 rpm
Max Torque - 320 @ 2400 rpm
Stroke - 3.25
Bore - 4.001
Compression - 8.75 (9.0 for 1969)
Firing Order - 18436572

1967 - 1968 with 4 Barrel Carb
Max Brake Horsepower - 325 @ 5600 rpm
Max Torque - 355 @ 3600 rpm
Stroke - 3.25
Bore - 4.001
Compression - 11.00
Firing Order - 18436572

1969 with 2 Barrel Carb
Max Brake Horsepower - 235 @ 4800 rpm
Max Torque - 325 @ 2800 rpm
Stroke - 3.25
Bore - 4.001
Compression - 9.00
Firing Order - 18436572