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How do I know which 327 I have?
Check the numbers on the deck that were stamped on the engine right before it went into the car. Look up the 2 or 3 letter suffix to find out what it is and what it left the factory in. Not all engines have these numbers. The engine in my roadster could either be a 327 or a 350 just going by the block casting number.
How much horsepower does a 1965 327 have?
As one of a gazillion Chevy high-performance guys who grew up in the late ’50s and ’60s, the 1965-1968 L79 327 (rated at both 350 hp and 325 hp) was for many the “Best Overall Chevy Small-Block of the ’60s.” Yes, it only had a single inlet, 585 Holley four-barrel carb (also rated at 600 cfm), but everything else was …
How much HP does a 327 have?
Despite being down on inches to the 350, the 327 Chevy still lays claim to the most powerful production conventional small-block ever produced, the L84. Rated at 375 hp, the fuel-injected 327 was a high-winding screamer, as satisfying to drive as any big-block.
Where is the engine number on a 327 Chevy?
Location. The 327 Chevy engine is stamped on a machined pad on the front passenger side cylinder head usually behind the alternator.
Are 327 and 350 blocks the same?
Both the 327 and 350 have 4″ bores. The 327 has a small 3.250″ stroke and the 350 has a longer 3.480″ stroke.
How do you tell if it’s a 327 or 350?
Measure the stroke. If the stroke is 3.25 its a 307 or 327. If its 3.48 its a 350.
What are the specs on the 327 V8?
327ci Specs Index
- Horsepower: 340 HP @ 6,000 RPM (Carbureted), 360 HP @ 6,000 RPM (Fuel Injected)
- Torque: 344 lb-ft @ 4,000 RPM (Carbureted), 352 lb-ft @ 4,000 RPM (Fuel Injected)
- Compression Ratio: 11.25:1 (High-Output), 10.5:1 (Base)
- Displacement: 327 cubic-inches (5.4L)
- Cylinder Bore: 4.00” (101.6mm)
How do I know if I have a 327 small block?
The 3.25″ crank is what makes it a 327. Your block could be built with a 3.48 crank and then it would be a 350. If you put in a 3.00 crank, then you have a 302. If you put in a 3.75″ crank it becomes a 383 (with a .
What is the HP on a 327 engine?
In its most powerful version, rated at 375 HP , the 327 CID boasted a 1.15 HP per cubic inch ratio . This represented the highest ratio of any factory assembly line engine built at that time. When compared to other powerful General Motors engines like the Pontiac Tri-power 389 , the 327 produced more horsepower and weighed less while doing it.
What is the bore size for a Chevy 327?
What made the 327 so efficient was its large (for a small-block), 4-inch bore that readily accepted big-valve heads, combined with the relatively short 3.25-inch stroke.
What is a 327 stroke?
The 327 has a stroke of 3.25 inches and is available in both small- and large-journal versions. The 302 crank goes goes back to the 3-inch stroke, but unlike the 265 and 283 crank, the 302 spins on large-diameter journals.