Originally Posted by rainmaker
No disrespect, but I guess my point was if you're going to leave it open by saying something like "you're missing out on the best in the business...." that's not really helping much. Why even post that if it takes a second post to find out what you really mean?
Sorry you didn't get it. I'll try to spell it out more clearly for you next time. I left my post open since I didn't want anyone to think I was plugging one specific porter. From now on maybe you should do your own homework.
You also fail to mention that going the "professional" route tends to be more pricey and gains aren't that much more over the "non-professional" porters. For those guys who have a ton of money and want that extra 5-10 HP you're right, going with guys like Al Papitto is the way to go. But then again I've seen many guys go fast with "out of the box" style heads/port jobs too.
995 RWHP / 8.93@153mph 370c.i. LS1 motor, iron block, stock crank, eagle connecting rods, and diamond pistons. Out of the box AFR 225 heads
Take it FWIW. Just trying to help everyone to make it a better community.
LMFAO that was one of the most ignorant posts I've ever read on the net. Letting anyone but a pro touch a set of cylinder heads is the worst mistake anyone can make. The avg. joe or even enthusiast doesn't have a damn clue how to make a set of heads flow better. I don't mean flow bench results because a sewer drainage pipe will flow 1000cfm with zero velocity. Quite often quality porters add as much material via weld/epoxy as they remove from other sections of heads.
The example you cited is USELESS, why? Because it's a forced induction motor. Forced induction is an outstanding band aid in compensating for shortcomings a motor may possess. You can hog the **** out of a set of heads used on a FI motor or even leave them stock because the blower/turbo creates the velocity/flow. Get it? Throw those heads on a N/A H/C motor and it will lift its leg to piss.
Finally, where do you get off saying a professional porter can only make 5-10hp more than a novice at much reduced cost? Where are some legit examples to cite reg. the differences in power made? Hint: There aren't any. Al makes 350HP from a 1.5L naturally aspirated 2v/SOHC small bore bike motor, even a "really really good" porter can't do that, let alone a nobody. LOL, when was the last time you called Al for a price quote? His pricing is industry standard, $750 for basic work (milling if applicable, Serdi 5 angle VJ with hand blend, short turn/bowl/exhaust work and assembly/disassembly), race porting is $1500 for more extensive porting plus the basic work. Those prices are for DOHC/4Vs so 2v stuff is also substantially cheaper since there are only half as many valves/seats to work. If you think that's too expensive, just remind yourself that anything worth a **** in this world costs money, you always get what you pay for.
The bottom line is that the potential HP any motor can make is in the cylinder head. Cam/intake determine how much of that potential is reached and where in the rpm band. When building a house you start with a solid foundation, in the case of a motor, the heads are the basement.
The best thing you or someone as blatantly ignorant as you can do for this forum is to not post when it comes to topics you don't have the first clue about. Crap/misinformation like you've just posted will do nothing but wrongfully distort the views of people that are truly trying to learn.
Anyone in the Ford camp knows that I've authored the most complete/comprehensive and accurate Modular head guide to date--it's actually 4 years old at this point but no one else has even bothered to better it. I plan on doing some in depth documentation with Al with the 6.1 heads when the time comes, simply because legitimate information on them is impossible to find at this point.
Sorry if I came off a little harsh but I hate misinformation, and I'm still sleep deprived from Vegas/Glendale.