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Brodix Cylinder Heads Aluminum Street Heads
Cylinder Heads, Street, Aluminum, Assembled, 67cc Chamber, 170cc Intake Runner, Chevy, 302, 327, 350, 400, Pr
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Estimated Ship Date: Dec 16, 2026 Would you rather pick it up?
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Estimated Ship Date: Monday 11/9/2026
Overview
Brand:
Manufacturer's Part Number:
1031000
Part Type:
Product Line:
Summit Racing Part Number:
BRO-1031000
Item Number:
790182
Combustion Chamber Volume (cc):
67
Intake Runner Volume (cc):
170cc
Cylinder Head Style:
Assembled
Cylinder Head Material:
Cast aluminum
Camshaft Style:
Hydraulic flat tappet
Intake Port Shape:
Rectangular
Intake Valve Diameter (in.):
2.020 in.
CNC-Machined Combustion Chamber:
No
CNC-Machined Intake Runner:
No
CNC-Machined Exhaust Runner:
No
Intake Port Location:
Standard
Exhaust Port Shape:
D-port
Exhaust Port Location:
Standard
Spark Plug Style:
Straight
Intake Valves Included:
Yes
Exhaust Valves Included:
Yes
Exhaust Valve Diameter (in.):
1.600 in.
Valve Springs Included:
Yes
Maximum Valve Lift (in.):
0.525 in.
Outside Diameter of Outer Spring (in.):
1.250 in.
Damper Spring Included:
Yes
Number of Springs Per Valve:
Single
Retainers Included:
Yes
Retainer Material:
Steel
Locks Included:
Yes
Lock Style:
10 degree
Valve Stem Seals Included:
Yes
Rocker Arm Studs Included:
Yes
Rocker Arm Nut Thread Size:
7/16 in.-20
Rocker Arms Included:
No
Rocker Arm Nuts Included:
No
Guideplates Included:
Yes
Guideplate Pushrod Size:
5/16 in.
Valve Cover Mounting Style:
Perimeter bolt
Accessory Bolt Holes Drilled:
Yes
Valve Guides Included:
Yes
Valve Guide Material:
Phosphorous bronze
Valve Seats Machined:
Yes
Valve Seat Machine Style:
3-angle
Valve Seat Material:
Ductile iron
Cylinder Head Color:
Natural
Steam Holes Drilled:
No
Oiling Style:
Through pushrod
Machined for O-Ring:
No
Heat Crossover:
No
Remanufactured:
No
Quantity:
Sold as a pair.
Brodix Cylinder Heads Aluminum Street Heads
Brodix Cylinder Heads street heads are fully assembled and smog-legal. Cast from A-356 aluminum alloy, these heads feature:
* High-velocity, high-flow ports
* Matched 170cc intake ports
* 69cc combustion chambers
* Brodix stainless steel 2.02 in./1.60 in. valves with a 3-angle competition valve job
* Hardened exhaust valve seats for use with unleaded gas
* 1.25 in. valve springs
* PTFE seals
* 7 degree locks and retainers
* 3/8 in. screw-in studs
* Guideplate
* Heat riser passage
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Instructions & Calculators
Some parts are not legal for use in California or other states with similar laws / regulations
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