When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
i have a thread goin on heads too but this seems to be more informative lol what kinda stuff would you want in a heads, how many cc, valve sizes, everything. there is so much out there to think about with heads and it just seems that most people just wanna sell waht they have in stock. just want a head that makes great power. i keep hearin about the AFR's and how they make good power and have room to work. thinking about 205's but i dont really even know lol dont know if i a ltage 2 5.3 head is better or what?!
in a 5.3 head I like to see the following things (N/A 346)
2.055/stock exh.(5.3)
intake port around 225-230cc flow... mid 250s @.400, low 320s @ .600
exhaust port around 75-80cc flow... 260-270 with a pipe at .600
chamber volume of about about 60cc
and always good consistancy plays a major role in a good head
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.
7 Most Reliable High-Performance Engines GM Has Ever Built
Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...