500HP 4.3??.

500HP 4.3??.

Postby Gary [OP] » January 18th 2011, 4:39pm

Even through I don't like the comic books like hot rod,this link aside from a 500 HP 4.3 explains the differences between V8's and V6 4.3.The Bowtie 4.3 they talk about in the link is the one I owned and had it in a Chevette running it at 10.90 as a race car.

But you are going to see the statement of a 4.3 is a V8 with two cylinders cut off isn't true at all.

http://www.hotrod.com/pitstop/hrdp_0705 ... index.html
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Re: 500HP 4.3??.

Postby Phantom » January 18th 2011, 5:47pm

Usually with most of the articles i have read that say the 4.3 is the 5.7 with 2 cylinders cutoff they are referring to that there are more things that are similar between these motors than dissimilar , various parts will interchange , I have read articles written by those who engineered the 4.3 that it was intended to be as close to the 5.7 as possible with only 6 cylinders , having things in common makes for lower production costs for the car maker , they are trying to develop a production line that 4 , 6 , 8 and 10 cylinder engines can be built on the same line using as many of the same parts as possible to keep design and parts casting to a minimum as the dies for the castings can cost 10's of thousands of dollars apiece .
Examples of this goes as far back as when Pontiac made their own engines it was common for performance guys to take the heads off a 350 Pontiac motor and directly bolt it to a 400 or 455 engine and create at least 25 HP or more depending on if they did mods to the heads before mounting them , point is the engine's heads can be swapped as 'bolt on power' without any mods . I don't see why anyone wants to focus on the statement about 4.3 and 5.7 , if it had no truth to it; it would have never attained such a perception.
Anyone skilled enough to build an engine will do their homework about what parts will interchange and what parts will not interchange and what if any gain there might be and what parts to buy long before buying them . If it is their first build then they need to be in contact with someone who has built many in order to know how to do it without all the pitfalls that can be had , if the perception of the 4.3 is the 5.7 with 2 cylinders cutoff is disturbing to someone then perhaps they should learn why people say it and then perhaps then it won't be as disturbing as it is not meant to be taken literally . :2:
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Re: 500HP 4.3??.

Postby Gary [OP] » January 19th 2011, 12:41am

Well the reason behind the link posting is for a quick ref for members that are not as inform as you or I. :poke: :doh: :lol:

I can't count the number of times I have seen guys buy something and then find out opps it doesn't work. :roll:
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