porting can help
- Thread starter grumpyvette
- Start date
as the gains may be significant, over the stock configuration,
BUT the end result costs far more than the time and effort warrants
your far better off starting with better heads
CAREFUL RESEARCH AND SHOPPING WILL RESULT IN FAR LESS WASTED MONEY IN PORTING INFERIOR HEADS
, SHOP FOR THE BEST HEADS YOU CAN AFFORD
hey I just picked up FUELIE HEADS FOR CHEAP..
"hey GRUMPYVETTE,I just picked up 492 FUELIE HEADS FOR CHEAP..CAN I GET THEM TO PRODUCE 400 HP!" SURE you can get those heads to produce 400hp, but for the same money you could most likely make an additional 40-60 more hp with better aftermarket cylinder heads,TECHNOLOGY HAS ADVANCED A GREAT...
garage.grumpysperformance.com
upgrade fuelie or smog 305 heads
I am Thinking these old camel hump heads {stock 1.94 intake, 62cc} can take the heat better than 305 heads( stock 1.84 intake , 58cc chamber) Anybody know!? :bdh: most older FUELIE or camel hump heads are now 45 plus years old and in need of a total rebuild with new hardened valve seats new...
garage.grumpysperformance.com
193 swirl port heads
I got asked what swirl port heads are? well they are heads designed to maximize low rpm torque and provide a lean burn in the combustion chamber and in theory better mileage, the ports are an early attempt at what eventually evolved into the later VORTEC HEADS, the SWIRL PORT HEAD HAS A RAMP, IN...
garage.grumpysperformance.com
are the stock aluminum corvette L98 heads any good?
most of us want to save money and theres almost always some guy selling used " C4 ALUMINUM CORVETTE HEADS" at a good price so I get asked if thats a good performance upgrade, as they are usually far less expensive than new aftermarket heads,those used aluminum corvette heads can usually be...
garage.grumpysperformance.com
multi-angle valve job related
for a valve to function correctly it needs to both seal completely when seated against the head and allow efficient flow between the valve seat and underside of the valve as it lifts off its seat, the curtain area( that's BASICALLY, the distance the valve is off its seat times the valve...
garage.grumpysperformance.com
sellecting cylinder heads
READ THIS THREAD AND LINKs and SUB LINKS AS ITS IMPORTANT TO UNDERSTANDING SOME FACTORS, and theres a ton of useful info in the links read these threads and sub-links also, as they contain good info, if you fail to read thru the sub links youll miss a ton of useful info, don,t think published...
garage.grumpysperformance.com
more port flow related info
links, calculators and info well worth reading thru, yes theres a HUGE tendency to breeze over them, but they contain a ton of related info youll need USE THE CALCULATORS, YOULL, QUICKLY FIND THE LIMITATIONS http://www.rbracing-rsr.com/runnertorquecalc.html...
garage.grumpysperformance.com
Last edited:
as a basic guide your ideal street/strip
performance small block chevy head
should flow at least 250 cfm at .500 lift and ideally 280 cfm plus at .700 lift
Pro-Filer Racing Cylinder Heads and Intake Manifolds
State of the Art Cylinder Heads and Intake Manifolds for Racing and Street Performance.
should flow at least 350 cfm at .500 lift and ideally 380 cfm plus at .700 lift
example
AFR 357cc BBC Rectangle Port Cylinder Heads 100% CNC Ported No Parts - Air Flow Research 3570 - TREperformance.com
TREperformance sells new AFR 357cc BBC Rectangle Port Magnum aluminum cylinder heads from Air Flow Research for almost any Chevy big block vehicle, this is part # 3570.
treperformance.com
Last edited:
FishFry
Active Member
That "Mission Impossible Engine" project, David Vizard, Tony and Unity Garage are doing is really interesting.
Charles Servedio is doing all the porting for them, and IMHO he is doing an amazing job.
Here is one of the clips, well worth to see them all, if you into porting.
Charles Servedio is doing all the porting for them, and IMHO he is doing an amazing job.
Here is one of the clips, well worth to see them all, if you into porting.
Last edited by a moderator: