The use of these cast heads are encouraged due to their extra thickness and increased strength. If your into extreme reliability from sub zero arctic conditions to summer desert heat, these cast heads will handle the punishment for your performance application

On Line Performance Parts

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Dart Iron Eagle Cylinder Heads

Small Block Chevy Spec Sheet

Attention Engine Builders!

World Castings  Cast Iron Cylinder Heads

SB Chevy V8 Cast Iron Cylinder Heads

Save money and time by using stock style dart replacements castings and assemblies. More often than not, you will spend more in trying to find good used set of heads and having them cleaned, crack tested, and rebuilt than it would cost you by just purchasing these dart castings in the first place. I've discontinued searching through junkyards for good heads, since many already have cracks, and you don't know until you already have disassembled and cleaned them up and crack checked them. If they are cracked, if the guides are worn and if the seats need replacing, you may have to go through all that hassle again! And without further inspection, they may already be milled down too far to allow for a good clean up, resulting in leaking head gaskets. Before you even know it, By the time and money you spend, traveling to and from, when you finally get a good set of castings, you would have done better by purchasing these dart heads in the first place. They actually come out cheaper in the long run, since, where are you going to find those 2.02 small block heads?   Most junk yards are pretty picked over all ready, and when specialty parts do come in, they usually go pretty fast to rebuilder shops. We are a distributor for World Castings/dart, if you want the best prices around for great heads, give us a call, since we pass our factory direct savings on to you

rocker arm image goes in hererocker arm stud gif

Dart Heads Feature:

Most stock heads feature pressed-in rocker studs that can pull out and must be pinned. All World Castings Stock Replacement heads feature screw-in rocker arm studs that won't pull out! Maximum Strength and Value!

 

  • Brand New, High Strength Castings
  • Small Block Chevy Heads from 1962-Present

Four part #'s replace all of the Chevrolet castings listed

#4350 76cc replaces the following:
Year CID GM Casting Number
79-92 350 462624
71-92 350 333882, 460703, 468642, 3974387, 3986339, 3998991, 3998993, 14020516, 14020517, 14020556, 3998920, 14071114, 3911032, 3970126
68-70 350 3927186, 3927187, 3932441, 3947041, 3946813, 3973414
86-87 350 14079261
70 400 3981598*
71-80 400 3973493*, 3998997*
* These heads require steam holes drilled for the 400 Chevy Small Block.
#4351 Early style 67cc replaces the following:
Year CID GM Casting Number
68-69 327 3932441, 3917290, 3973370, 3998993, 3911032, 3917291, 3827185, 3927186, 3946813
62-67 327 3795896, 3814482, 3884520, 3890462, 3917291
#4352 Medium Duty truck head for the following:
Year CID GM Casting Number
71-92 350 333882, 468642, 3998991, 3998993, 14020516, 14020517, 14020556, 14071114, 3973487, 3986339
79-92 350 462624
86-87 350 14079261
68-70 350 3932441
71-80 400 3973493*, 3998997*
* These heads require steam holes drilled for the 400 Chevy Small Block
#4353 C-60 Heavy Duty truck head for the following:
Year CID GM Casting Number
71-82 350 378445, 3932454, 3966388
62-67 327 3774884, 3876775, 3774884, 3942454, 3876775, 3917293
62-66 327 3927186, 3932441, 3947041, 3946813, 3970126, 3983414, 3991492, 3998933, 376445, 14079267
Note: All Medium - Heavy Duty truck heads include 7/16" accessory bolt holes.
World Stock/Replacement Cylinder Head
Part # Description
4350 76cc 1.94" x 1.50" valves with 11/32" guides
4351 67cc 1.94" x 1.50" valves with 11/32" guides
4352 76cc 1.94" x 1.50" valves (medium duty) with 3/8" exhaust guides
4353 76cc 1.94" x 1.50" valves (C-60) 7/16" accessory holes, boss holes for air-brake compressor, 3/8" inserted exhaust guides
4354* 76cc 1.94" x 1.50" valves, with 11/32" guides with 1986 and later intake face
4355* 67cc 1.94" x 1.50" valves, with 11/32" guides with 1986 and later intake face
4358* 76cc 1.94" x 1.50" valves, with 3/8" guides with 1986 and later intake face
4359* 67cc 1.94" x 1.50" valves, with 3/8" guides with 1986 and later intake face

* Requires use of pre-1986 four bolt style valve covers.

All stock Replacement part numbers are bare castings starting around $200 each

Part#    Description                                                      Price Per Head

4360 SB Chevy 76cc 1.94 x1.5 11/32 Guides                                       $call
4361 SB Chevy 67cc 1.94 x1.5 11/32 Guides                                      $call
4364 SB Chevy 76cc 1.94 x1.5 11/32 Guides 87+int face                            $call
4365 SB Chevy 67cc 1.94 x1.5 11/32 Guides 87+int face                            $call
5290 2.9 Ford V-6 1.657x1.419                                                  $call
7150 S/R SB Chevy Parts Kit 1.940 x1.500 11/32(per engine i.e.pair)                 $call

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Stock Replacement for Factory Fuelie & 70-72 LT-1 Heads

Low Cost Fuelie and LT-1 Power

  • Accepts 2.020" x 1.600 Valves
  • Stock Replacement Installation
  • Choice of 67 cc or 76cc Chamber
  • Screw in Rocker Studs
  • Unleaded Fuel Valve Seats
  • Raised Fully Machined Valve Cover Rails
  • Accepts Perimeter and Centerbolt Valve Covers
  • Accepts All Early and Late Model Accessories
S/R TORQUER BARE CASTINGS:
Includes hardened steel exhaust seats, 3 angle valve job, all mounting surfaces are machine drilled and tapped. Heads are ready for assembly. Does not include any parts.
Part # Material Runner Volume Chamber Volume Spark Plug Location Standard Valve Seats
4266B Cast Iron 171cc 67cc Stock 2.020"x1.600"
4267B Cast Iron 171cc 76cc Stock 2.020"x1.600"
S/R TORQUER ASSEMBLIES:
Includes bare castings assembled with 2.020" x 1.600" stainless steel valves, umbrella seals, heavy duty 1.250" diameter springs, 7 degree retainers and locks, and screw-in rocker arm studs.
Part # Material Runner Volume Chamber Volume Spark Plug Location Standard Valve Seats
4266A Cast Iron 171cc 67cc Stock 2.020"x1.600"
4267A Cast Iron 171cc 76cc Stock 2.020"x1.600"

Bare Castings starting around $240, Assemblies Starting around $360

Part#     Description                                    Price Per Head

4266b     67cc Straight Plug Bare Casting                     $call
4266a     67cc Straight Plug Assembly                        $call
4267b     76cc Straight Plug Bare Casting                      $call
4267a     76cc Straight Plug Assembly                         $call
4277b     76cc Straight Plug 87+ Intake Face, Bare Casting       $call
4277a     76cc Straight Plug 87+ Intake Face,  Assembly         $call

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Stock Replacement for Factory Fuelie & 70-72 LT-1 Heads

Low Cost Fuelie and LT-1 Power

  • Accepts 2.020" x 1.600 Valves
  • Stock Replacement Installation
  • 67 cc or 76cc Chambers
  • Screw in Rocker Studs
  • Unleaded Fuel Valve Seats
  • Raised, Fully Machined Valve Cover Rails
  • Accepts Perimeter and Centerbolt Valve Covers
  • Accepts All Early and Late Model Accessories

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World Castings Cast Iron 305 Torquer SB Chevy V8 Cast Iron Cylinder Heads
                                   50 State Legal

S/R TORQUER 305 BARE CASTINGS:
Includes hardened steel exhaust seats, 3 angle valve job, all mounting surfaces are machine drilled and tapped. Heads are ready for assembly. Does not include any parts.
Part # Material Runner Volume Chamber Volume Spark Plug Location Standard Valve Seats
4265B Cast Iron 171cc 58cc Stock 1.94"x1.500"
86 & Older
4275B Cast Iron 171cc 58cc Stock 1.94"x1.500"         87 & Newer
S/R TORQUER ASSEMBLIES: Includes bare castings assembled with1.940 x 1.500" Manley stainless steel valves, umbrella seals, heavy duty 1.250" diameter springs, 7 degree retainers and locks, and screw-in rocker arm studs.
Part # Material Runner Volume Chamber Volume Spark Plug Location Standard Valve Seats
4265A Cast Iron 171cc 58cc Stock 1.940"x1.500"
86 & Older
4275A Cast Iron 171cc 58cc Stock 1.940"x1.500"
87 & Newer

Bare Castings Starting around $240, Assemblies Starting around $350

Part#       Description                                        Price Per Head

4265b     58cc Straight Plug Bare Casting                             $call
4265a     58cc Straight Plug Assembly                                $call
4275b     58cc Straight Plug 87+ Intake Face Bare Casting                $call
4275a     58cc Straight Plug 87+ Intake Face Assembly                   $call

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World Castings Sportsman II Heads

Hi-Tech, Low-Price Power!

World Castings sets the pace in both innovation and value! The new Sportsman II features extra tall, dual pattern valve cover rails. The added height provides extra clearance for stud girdles and rockershaft setups. A taller valve cover gives a more muscular, distinctive look to your engine. The Sportsman II is the only cylinder head available that accepts both early (rail mount) and late model (Centerbolt) style valve covers. Valve cover gasket surfaces are fully machined for a leak-free seal. To complement the dual valve cover bolt pattern feature, accessory pads are machined, drilled and tapped to accept all early and late model accessory brackets.

INCREASED POWER AND TORQUE!
200 CC. Intake Port Volume
IMPROVED EXHAUST RUNNER TECHNOLOGY!

Out of the box, the Sportsman II exhaust runner offers 10-15% flow increases over the already impressive original Sportsman. Exhaust runners have been enlarged and then reshaped to offer increased horsepower while further increasing low rpm torque. The improved design balances overall airflow and efficiency through the engine by increasing chamber evacuation and intake charge scavenging. At all valve lifts, Sportsman II exhaust runners will flow at 75-77% of the intake runners.

Castings starting around $285 and assemblies Starting around $400

Part # Description                                              Price Per Head

1115b 64cc Angle Plug Bare Casting                                   $call
1115a 64cc Angle Plug Assembly                                      $call
1125b 64cc Straight Plug Bare Casting                                 $call
1125a 64cc Straight Plug Assembly                                    $call
1215b 64cc Angle Plug Bare Casting                                   $call
1215a 72cc Angle Plug Assembly                                     $call
1225b 72cc Straight Plug Bare Casting                                 $call
1225a 72cc Angle Plug Assembly                                      $call
1226b 72cc Angle Plug 87+ Intake Face Bare Casting                      $call
1226a 72cc Angle Plug 87+ Intake Face Assembly                         $call

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World Castings Oval Port Merlin Heads

50 Ft-Lbs. More Torque Than LS6!

  • Hi-Torque 269cc Oval Port Runners!
  • Reinforced to Resist Cracks & Warpage!
  • Integral Guides (not pressed-in like stock)!
  • Unleaded Fuel Compatible!
OVAL PORT MERLIN BARE CASTINGS:
Includes hardened steel exhaust seats, 3 angle valve job, all mounting surfaces are machined drilled and tapped. Heads are ready for assembly. Does not include any parts.
Part # Material Runner Volume Chamber Volume Chamber Style Standard Valve Seats
3004B Cast Iron 269cc 119cc Open 2.190" x 1.880"
OVAL PORT MERLIN ASSEMBLIES:
Includes bare castings assembled with: 2.190" x 1.880" stainless steel valves, umbrella seals, heavy duty 1.550" diameter springs, 7o retainers and locks, screw-in rocker arm studs and pushrod guide plates.
Part # Material Runner Volume Chamber Volume Chamber Style Standard Valve Seats
3004A Cast Iron 269cc 119cc Open 2.190" x 1.880"

World Castings Cast Iron Raised Merlin Heads

50-100 HP for Big Cube Engines!

  • Hi-Flow 315cc Rectangular Port Runners
  • D-Shaped Exhaust Ports
  • Open Style Chambers
  • Great for High RPM / Big Cam Applications

Compatible with both Mark IV and Mark V Engine Blocks!Merlin cylinder heads,

unlike Chevy Mark IV heads, can be used on Mark V blocks.

Mark V head gaskets must be used to prevent improper coolant flow.

Extra metal surrounds passage to support Mark V head gasket.

Passage size suits both Mark IV and Mark V blocks.

MERLIN BARE CASTINGS:
Includes hardened steel exhaust seats, 3 angle valve job, all mounting surfaces are machined drilled and tapped. Heads are ready for assembly. Does not include any parts.
Part # Material Runner Volume Chamber Volume Chamber Style Standard Valve Seats
3003B Cast Iron 315cc 119cc Open 2.190" x 1.880"
MERLIN COMPLETE ASSEMBLIES:
Includes new castings assembled with:  Manley stainless steel valves, Matching valve seals, Matching heavy duty  valve springs, 10* retainers and locks, screw-in rocker arm studs and pushrod guide plates.
Part # Material Runner Volume Chamber Volume Chamber Style Standard Valve Seats
3003A Cast Iron 315cc 119cc Open 2.190" x 1.880"

Bare castings starting around $425, assemblies starting around $570 up to about $900

Part #     Description                                         Price Per Head

3003b     Merlin 310ccRectangular Port Bare Cast                     $call
3003a     Merlin 310ccRectangular Port Assembly                          $call
3004b     Merlin 269cc Oval Port Bare Cast                                 $call
3004a     Merlin 269cc Oval Port Assembly                                     $call
3062b     Merlin VR Race/Marine Rect Port Bare Cast            $call
3062a     Merlin VR Race Rect Port Assembly                             $call
3063b     Merlin VR Race/Marine Rect Port Bare Cast              $call
3063a     Merlin VR Race 345cc Rect Port Assembly                      $call
3072a     Merlin VR Marine 310cc Rect Port Assembly                     $call
3073a     Merlin VR Marine345cc Rect Port Assembly                     $call
3074b     Merlin VR Marine 269cc Oval Port Bare Cast                $call
3074a     Merlin VR Marine 269cc Oval Port Assembly                      $call

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World Castings Cast Iron Windsor/Windsor Jr 289, 302, 351W Ford

World Castings Cast Iron Windsor/Windsor Jr 289, 302, 351W Ford Heads

Bare Castings starting just below $300, Assemblies starting just below $400

Part #   Description                                     Price Per Head
 
5302b   Windsor 64cc, Bare Casting 		          $call
5302a   Windsor 64cc Assembly 			  $call
5303b   Windsor Jr. 58cc Bare Casting 	          $call
5303a   Windsor Jr. 58cc Assembly 		          $call

LaPouttre Racing Heads / Engines

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