Building Race Winning Drag Race Engines For Over 45 Years!

Dart 310/325/345 Pro 1 Big Block Chevy Cylinder Heads

310-345 $2,495
Priced Per Pair

We Start Every Custom Build Of Our Cylinder Heads With Brand New Dart Castings And Specifically Selected Components - These Heads Are Never "Factory Assembled"!

These Newest Design heads have made a great head even better! We've seen a 10-15HP improvement over the originals. These heads cover the range from 454 through 582 CU IN. Looking for extra power at a reasonable price? Add the CNC option for a 25HP increase for only $395 ! Available in 310, 325 or 345cc versions.

Shafiroff Racing Cylinder Head Sale - Save Big On Any Set Of Dart or Brodix Big Block Chevy Heads!
$ 400 Off Our Regular Price - Sale Price $ 2,095
  • Porting:
  • Chambers:
  • Intake Port:
  • Exhaust Port:
  • Intake Valve:
  • Exhaust Valve:
  • As Cast
  • 119cc (114cc Available)
  • 1.700" x 2.430" Stock Location
  • 1.650" x 1.800" Raised .300"
  • 2.300" Stainless (2.250" on 310)
  • 1.880" Stainless
  • Valve Spacing:
  • Springs:
  • Retainers:
  • Rocker Studs:
  • Guide Plates:
  • Spark Plug:
  • Standard
  • 1.550" Dual Roller
  • 10° Steel
  • ARP 7/16"
  • Dart (2) Piece 3/8"
  • 3/4" Reach 5/8" Hex
Porting - Chambers
CC and Mill Chambers to 114cc $125
CNC Chamber Upgrade $395
Springs - Retainers
Manley NexTek 1.640" Dual Roller Springs (requires Titanium Retainers) $175
PAC Racing 1247 Triple Roller Springs - Includes Additional Machining (Requires Titanium Retainers) $320
Titanium Retainers $175
Enduro Style Hydraulic Roller Springs (w/10° Steel Retainers) $125
Severe Duty Inconel Exhaust Valves $350
Rocker Arms
SSRE Stud Girdle w/CNC Machined 2-Piece Valvetrain Stabilizer & Locking Hex Head Adjusting Nuts $295
Scorpion Severe Duty 1.7 Aluminum Rocker Arms w/Polylocks $315
T&D Shaft Rocker System Available In 1.70, 1.75 or 1.80 Ratio (Split Ratio Sets No Extra Charge).
Note: Pushrod Clearance Must Be Checked Before Final Assembly.
Needle Bearing Tip Option for T&D Shaft Rockers $295
Intake Manifolds
Many Different Styles Available With Pricing Comparable To "Mail Order" From$250
Gaskets - Fasteners
Cometic MLS (Multi Layered Steel) Head Gaskets (.040/.045/.051 Thickness) Each$95
Cometic MLS (Multi Layered Steel) Head Gaskets (.060/.066 Thickness) Each$115
Intake Gaskets - Many Types & Thicknesses Available From$15
Rubberized Cork Valve Cover Gaskets From$15
Blue Silicone Rubber/Steel Core Valve Cover Gaskets From$49
Ultra Seal Exhaust Gaskets From$22
Manley Head Bolt & Washer Kit From$75
ARP Head Bolt & Washer Kit From$115
ARP Head Stud Kit w/Parallel Ground Washers From$239
Dart Inner Valley Stud Kit (Improved Head Gasket Sealing) $95