All Pro Cylinder Solid LS7 Heads - Mechanical Cam, Titanium Valves Diamond Inc are big fans of

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

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

Their LS Next SHP Pro is a major upgrade as it steps their skirted iron block up to the same 220 BHN iron as their original LS Next blocks

Callies Says - Better by Design

VR2 twin pump design allows both pumps to operate simultaneously or for one pump to be off or run at low speed while the second pump is at low speed or full speed

All Pro Cylinder Solid LS7 Heads - Mechanical Cam, Titanium Valves Diamond Inc are big fans ofThis 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