PORTING

Who here ports their heads or has it done for them?  

gettn, I have not done porting myself, on heads anyway. I have ported several Mazda rotary engines in the past.  

I see the need to port the older iron heads, and some of the cheaper aluminum aftermarket heads due to improper casting and flaws in general. I would hope that the average guy gets his stock heads ported and set up for oversize valves instead of wasting his money on aftermarket heads that usually not much better than stock and cost a lot more than the aforementioned port job.

Right now I'm looking at doing a mild build on my daily driver. It's not a V8, but a DOHC Toyota designed and built all aluminum engine, and it is in a Chevrolet.  The engine has great potential but no one gives it a second look because of the car that it is in. There are no aftermarket heads for it, so I will either try my hand at porting, or get someone that I trust do the work for me.

BTW, if anyone cares, properly porting a rotor housing to breath at 10K, boosted, rpms takes about 30 hours of total time. There is nothing worse than killing 3 apex seals because you didn't properly bevel the edges on a port!

Jake  

HAHA, I just realized that I was the first to post almost 2 hours after the topic was started.

Jake  

a toyota motor in a chevy makes me wanna puke  

Well, its one of the better built Chevy's. It's called the Geo/Chevy Prizm. Great little cars, reliable as Hades, great fuel mileage, and they handle very well.
American made as well. Built in California under a joint agreement with Toyota and Chevy.

GM did the same thing with the Pontiac Vibe.

So I guess you're puking a lot since this agreement has been ongoing for 20 years.

Jake  

BTW, whats your opinion on the original topic?

Jake  

i have ported the heads on my '98 zr2 s10 with the 4.3L, came out nice
 

Not bad work gaboyz.Did you do any bowl work? Jake has a point its still in a Chevy. Porting is a dieing art form that not many people do correctly or want to put the time into.  

Good work gaboyz. Porting is definitely a dying part of engine builds. Everyone would rather spend money on aftermarket heads that do not deliver on the performance they promise.

Jake  

well being from flint yes i have wanted to puke for over 20 yrs.i dont care how long geos last my mom had one when i was a kid.i could probably beat it in a race on foot with one leg chopped off.along with the chevette they are an embarrassment  

Same thing could be said for late 70's and early 80's Chevy V8's. Choked down by emissions they barely made 160hp (crank, not wheel) and they were definitely slow. If you never took the time to port the heads, change out the induction and exhaust systems those cars would be slower than any 4 banger that that came out in the 90's.

That's the reason why we modify cars. To get out more potential power than the factory could.

Besides, mine isn't that slow. Rips off 0-60 in about 8.5 seconds. Which is late 80's stock V8 territory.

Jake  

agreed i have an 81 olds that was my grandparents and its dog slow too.i just hate to see any *** ass rice burner motor in any car let alone anything american but thats just me.personally im partial to 68-72 muscle i think those were the best cars ever made