170cc Intake Runner
JEGS 514080 Cast Iron Vortec Cylinder Head for Small Block Chevy with 170cc Intake Runners is a bolt-on replacement for the 1996-2002 Chevy 5.7L Truck Engines.
JEGS Cast Iron Vortec Cylinder Head has fast burn combustion chambers and high-velocity intake and exhaust ports. This head performs great right out of the box but can be mildly ported and milled up to 0.040 in. and requires a Vortec-style intake manifold; modifying the head to accept an early intake manifold is not recommended. Assembled with premium parts JEGS Vortec Head fits all 1955-Present GM small blocks except LT1, LT4, and LS1-style engines.
- Fast burn combustion chambers
- High-velocity ports
- 100% New Assembly
- Direct Replacement for GM 906-062 Vortec
JEGS EZ Kits are designed by JEGS professionals to ensure that you get all the correct parts you need.
are these ready to install or is there assemble involved valve and springs?
Would these be smog legal In California on a 1990 blazer with a 350
Are the spring retainers machined to accept a larger lift spring? Looking to run around a .500 lift spring.
Will these heads work with the edelbrock preformer rpm intake part# 7101
I want to put these on a mild SBC 350 would I need to run guide plates or no ?
I have a marine comp cam with .477 exhaust lift... Will my cam work with these heads seen how they say.475 max left?? Don't know if that small amount would hurt anything or not...thx.
what is the valve spring Rate
Will these work on a 1998 k1500 5.0 litre?
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