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Porting is something done to the intake, and exhaust ports in the cylinder head. It enlarges the ports allowing more air/fuel mixture to flow into the combustion chamber, making more power. An engine is like an air pump. The more you flow through it, the more power you get out of it. Polishing is where they polish the enlarged ports, to a smooth finish. There are two types of thinking, as to if this is of benefit, or not. Some believe that a rough finish creates a turbulance that keeps the mixture, well, mixed.
What else can I help you with?
How can you get the most horsepower out of a Chevy 350?
cheep = have it tuned and timed expensive = rebuild it with a hp cam and port and polish the heads.
Where is oil pressure port on 350 Chevy?
Next to distributor, on top of the block, at the very back of engine (usually).
How many horsepower does a 1986 Chevy tuned port injected motor have?
Depends on whether it's a 305 or 350...
Does a Chevy throttle body injected 350 and multi port injected 350 have the same cam?
That would depend on the year and what type of automobile the engine is in.Tough question.
What is the center port on a Chevy 350 intake for?
Some carbs had a choke mechanism that relied on engine heat to pull open the choke blade. The center port you're referring to was the source of the heat.
What the tap size for the oil pressure gauge port on a 350 Chevy?
The one on the top rail behind the distributor is 1/8"NPT.
Is the starter on a 1970 Chevy 350 different from a 1978 Chevy 350?
no
Which chevy's use multi port fuel injection on the 350 engine?
The late 80's to early 90's tuned port engines had multiport injection, along with the lt1, and the later ls1.
Will a distributor from a 90 Chevy 350 work in a 99 Chevy 350 vortec?
NO.
Will a 1995 Chevy 350 and a 1989 Chevy 350 have the same wiring?
YES.
How do i determine the year of my Chevy 350 engine?
what year is my 350 chevy engine K1201KRH
92 Chevy 350 5.7 timing?
The Firing order for a Chevy 350 is 18436572.
