We have a strong database of dyno proven and track results, look at our results page! Also please look at our track and dyno proven line burr ported manifolds! From NHRA records to working with major cylinder head companies, let our knowledge work for you! Heads are finished per​ application with many options! We have cylinder heads for NA, nitrous, and turbo applications! 

    -SMALL BLOCK CHEVY-

• Profiler v3.25PF/13º​
• ​Profiler v2.95PF/13º (call)
• Profiler v3.60/SPS ​
• ProFiler 23º 195cc as-cast​​​​

​​    -LS CHEVY-

• GM vLS1
• GM vLS3

​    -BIG BLOCK CHEVY-​

• ProFiler vSOLID/BBC

• ProFiler vSniper/355

• ProFiler vSniper/375

• ProFiler vSniper/XL​​​

​​    -SRH HAND HEAD PORTING-

• HAND PORTING
• NHRA MANIFOLDS
• BURR vs 60 GRIT​

​    -SRH HAND MANIFOLD PORTING-

• HAND BURR MANIFOLDS
• MANIFOLD LENGTHS

​    -SITES/FORMULAS-

• FORMULAS
• ​BERNOULLI 101
• HEAD INFO SIZE​  ​