hey guys i am wanting to know who here has ported dart heads
i got the dart 205 heads and i want to know how far you can go and if any tips on porting them but my main question is how much hp is gained from porting them
we are making 430hp @ wheels n/a now and 520hp @ wheels with a 100shot of gas
so what should i see with ported heads

(mods are 232/236 cam and dart heads)

 

this would be answered better in the internal engine section...but anyways as far as ported darts go most people that have done it have said that they really haven't gained much by doing it...also TSP used to port them but they had a problem with the valve guides, seals, or something like that once they were ported and they leaked oil. TEA also has said that they had to change the guides/seals before porting dart heads

 

Oh really do you know why that happens at all?
also when you say not much how much hp like 20hp or more?
thanks for the reply mate

 

not even 20hp..actually alot of people have said that it is just better to leave them alone but a few people have said that there are some porters that do a good job with the darts but most porters will enlarge the runners and that will usually kill some lowend and really not improve the flow of the darts much..if you search there was a thread on this a few months ago