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CNC Cylinder head Porting
It all started with cylinder head porting. We have
over 35 years of experience with proven results
at the strip. Call us and we’ll answer any questions
you may have.
We offer our complete line of cylinder heads 100% CNC ported. Our years of porting experience allows us to replicate ports and chambers from one head to another. This provides us with the ability to match port volumes and flow resulting in great flow numbers and higher horsepower for you.

The key to high horsepower is port volume. Larger cubic inch engines require larger volume ports. We have not only created the highest quality CNC heads, but we have also developed heads with a wide range of port volumes to provide you with the correct heads for your horsepower needs.

We offer CNC heads for Chrysler small blocks, Hemi, big blocks, Wedge engines, AMC 401 and the new 5.7 or 6.1L Hemi engines. Complete specifications, applications, flow rates and C.I.D. displacements can be found on page 9 of the price sheet. Please feel free to call us with any questions.
Here's just a few of the CNC heads we offer
440-1 CNC-325 for Wedge or Big Block 325 cc intake volume. 375 cfm flow. 470”-500” C.I.D. Great head for pro street or drag racing. Pro street solid combinations and drag race roller combinations. Works well with 12.5 to 1 compressions and up. 850 HP potential 360-1 CNC-245 for Small Block 245 cc intake volume. 330 cfm flow. 390”-440” C.I.D. Great for any street or bracket race combinations. Works well with 11 to 1 and up compression and pump or race gas. Preferred head for large CID engines

 
Big Block
440-EZ CNC-295 Wedge Big Block 383” - 500” Named the “Little Easy” this head is designed for A body cars with stock exhaust port location and bolt pattern. Most standard exhaust headers will work. Stock push rod location with Maxx Wedge intake size opening.
440-EZ CNC-325 Wedge Big Block 440” - 540” Named the “Little Easy” this head is designed for A body cars with stock exhaust port location and bolt pattern. Most standard exhaust headers will work. Stock push rod location with Maxx Wedge intake size opening. The”Big Easy” head is designed for A body cars with bigger cubic inch Wedge engines with stock exhaust port location and bolt pattern. Most standard exhaust headers will work with offset intake push rod location for larger intake runner. Offset intake rocker arms needed.
440-SR CNC-295 Wedge Big Block 393” - 500” Any street or bracket race combo. Cylinder head has Maxx Wedge port opening to utilize Indy Maxx Wedge manifolds. Perfect head for 10:1 compression and up engines. Solid or rocker cam combinations. Huge improvement for any basic bracket engine. 2.19 x 1.81 valve size.
440-1 CNC-325 Wedge Big Block 470” - 500” Great head for pro street to drag race. Pro street solid combinations and drag race roller combinations. Works well with 12.5 to 1 and up compressions. 850 HP potential. 2.19 x 1.81 valve size.
440-1 CNC-345 Wedge Big Block 500” - 540” Recommended 4.375” bore. Drag race application. Roller cam combinations preferred. Works well with 12.5 to 1 compression and up. Perfect head for pro street supercharger applications. 900 HP potential. 2.25 x 1.81 valve size.
572-13 CNC-365 Wedge Big Block 528” - 572” 4.375” bore minimum. Drag race applications. Roller cam combinations preferred. Works well with 13.5 to 1 and up compressions. Most use Jessel rocker arm systems. Perfect for any 528 / 4.500” bore Wedge engine. 2.300 x 1.88
572-13 CNC-385 Wedge Big Block 572” - 605” Recommended 4.500” bore minimum. Drag race applications. Works well with 13.5 to 1 and up compressions. Must use Jessel rocker arm system. 2.300 x 1.88 valve size.
600-13X CNC-460 Wedge Big Block 605” - 655” Recommended 4.840” bore center block (Indy Maxx block). Good for 655”. Works well with 14.5 to 1 and up compressions. Must use Jessel rocker arm system on head. 2.450 x 1.810 valve size. 1200 HP
426 Hemi
426-1 CNC-285 Legend Hemi 426”- 528” Any street or bracket race combo. 16 bolt intake pattern with raised exhaust ports. Works well with 10.75 to 1 and up compression. Preferred head on smaller CID race engines and larger CID street engines. Perfect head for 605 street engine. Good head for supercharged pro street combinations. Headers available. 2.250 x 1.94 valve size.
426-1RA CNC-295 Legend Hemi 528” - 605” Any street or bracket race combo. 16 bolt intake pattern with raised exhaust ports. Works well with 10.75 to 1 and up compression. Preferred head on smaller CID race engines and larger CID street engines. Good head for supercharged pro street combinations. Headers are available. 2.400 x 1.94 valve size
426-1RA6 CNC-325 Legend Hemi 572” - 636” Great head for drag race applications with large lift roller cam combinations. 10 bolt intake bolt pattern with raised exhaust ports. Works well with 14.5 to 1 compression. 1200 HP potential cylinder head. Indy tunnel ram manifold(426-5) preferred manifold. 2.400 x 1.94 valve size
360-2 CNC 230 Oval port small block 370”- 426” Any pro street or drag race combination. Cylinder head has W-2 style intake flange, W-2 standard exhaust flange and utilizes Indy rocker arms. Works well with 10:1 compression and up. Preferred head for street or race stroker engines. 650+ HP potential. 2.100 x 1.65 valve size.
360-1 CNC 245 Rectangular port small block 390” - 440” Any street or bracket race combinations. Cylinder head has W-2 style intake flange, W-2 or standard exhaust flange and uses Indy rocker arms. Works well with 11 to 1 and up compression. Pump or race gas. Preferred head for CID race engines and largeCID street engines. 2.140 x 1.650 valve size.
401 AMC
401-1 CNC-275 AMC 401”- 500” Recommended 4.200 bore minimum. Must use Indy intake or sheet metal and 440 exhaust flanges. Has additional 7/16 head bolt holes to utilize Indy 401-1 aluminum block. Pro street and drag race applications. Roller cam preferred. 2.190 x 1.81 valve size. Works on stock 401 block
401-1 CNC-300 AMC 443”- 500” Recommended 4.375 bore minimum. Must use Indy intake or sheet metal and 440 exhaust flanges. Has additional 7/16 head bolt holes to utilize Indy 401-1 aluminum block. Pro street and drag race applications. Large lift roller cam preferred. 2.250 x 1.81 valve size
New 6.1 / 5.7 Hemi
5.7 CNC-184 5.7 Hemi By porting your 5.7 heads you can see gains of 55 HP and 45 ft lbs of torque. Put this head on a 392” engine and make 50 HP with minimal increase in gas mileage.
6.1 CNC-216 6.1 Hemi By porting your 6.1 heads you can see gains of 55 HP and 45 ft lbs of torque. Put this head on a 426” engine and make 600 HP and 600 torque with minimal increase in gas mileage.