CID-LT1/LT4 Bare Cylinder Heads with Valve and Spring Options

CID CNC PORTED CYLINDER HEADS FOR GEN V LT1/LT4 APPLICATIONS
These CID cylinder heads come from Gwatney Performance with LT1 spec intake and exhaust valves and a 55cc combustion chamber on the LT1 castings, while LT4 spec intake and exhaust valves and a 62cc combustion chamber are offered with the LT4 castings. When you add a BTR spring kit to these, you will get a combination that will close in on the 700hp mark naturally aspirated with a properly sized camshaft and intake manifold.
NOTE: Check piston to valve clearance before final installation!
LIFT
FLOW
0.300
227
0.400
291
0.500
328
0.600
336
0.700
346
0.800
354
SK007 valve spring kit components:
- SP001-1 valve springs (QTY 16)
- SR008-16 titanium retainer set (QTY 1)
- SL565060-16 spring locator set (QTY 1)
- VS LS KIT valve seal set (QTY 1)
- VL7°8MM-32 valve lock set (QTY 1)
- BS015-16, .015 thick shim set (QTY 1)
SK013 valve spring kit components:
- SP014-1 valve spring (QTY 16)
- SL565045CON-16 valve spring locator set (QTY 1)
- VS LS KIT valve seal kit (QTY 1)
- VL7°8MM-32 valve lock set (QTY 1)