Dart Special High-Performance (SHP) Assembled Aluminum Cylinder Head for Small Block Chevy (180cc)
301-126122
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180cc Intake Runners
This Dart 126122 SHP Series Aluminum Cylinder Head is a redesigned and improved version of the original SHP series 127122 head, and it delivers power increases at a budget-friendly price. Enhanced features include raised ports, dense aluminum alloy construction using proprietary permanent molds resulting in smooth as-cast intake runners, exhaust runners, and combustion chamber.
Dart 126122 Features:
- Fully assembled with valve springs, steel 10° retainers, Viton valve seals, hardened valve spring cups, 3/8 in. rocker arm studs, and adjustable guide plates included
- Valve springs with an outside diameter of 1.437 in. and rated at 130 lbs. @ 1.800 in. for use with a hydraulic flat tappet camshaft w/.600 in. max lift
- Revised, exceptionally smooth as-cast 180cc intake runner design to provide optimum power gains
- Exceptionally smooth 64cc combustion chamber
- Manley stainless steel 2.02 in. intake and 1.60 in. exhaust valves
- Powdered metal valve seats with multi-angle valve job
- Magnesium-bronze valve guides with .530 in. Viton valve seals
- Manufactured using an exclusive process using permanent molds
- Straight spark plug angle uses a 14mm .750 in. reach spark plug such as Autolite AR3934 (sold separately) or equivalent
- Sold individually
Specifications:
Does the off-the-shelf Dart 126122 head accommodate the canted intake bolts, center bolt valve covers, and roller rockers of a 1988 L98 350 SBC?
The photos show this head has a heat crossover passage, yet the specifications indicate it does not. Which is correct?
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