All Pro Cylinder Solid LS7 Heads - Mechanical Cam, Titanium Valves Diamond INTEGRATED WATER/METHANOL INJECTION CONTROL

INTEGRATED WATER/METHANOL INJECTION CONTROL

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Callies Says - Better by Design

We now use Callies center counterweighted cranks for all LS/LT engines from 700 hp N/A daily drivers to all-out 4

Inc are big fans of Callies cranks and rods for a lot of reasons

All Pro Cylinder Solid LS7 Heads - Mechanical Cam, Titanium Valves Diamond INTEGRATED WATER/METHANOL INJECTION CONTROLThis is the head we use for all of our big boost, billet block LS engines with no water. The 12 4 All Pro solid casting features reinforced exhaust flange, Borowski custom CNC port and chamber design, custom Ferrea titanium intake & exhaust valves. The spring kit features Manley NexTek valve springs (800 lbs. in. rate; 1. 130 in. coil bind height), Manley machined 10 degree bead locks and Manley titanium retainers. The heads are amazingly strong and