World S/R Small Block Chevy Cylinder Heads, Straight Plug, 2.02/1.60 Valves

#824202

World S/R Small Block Chevy Cylinder Heads, Straight Plug, 2.02/1.60 Valves

Name: World S/R Small Block Chevy Cylinder Heads, Straight Plug, 2.02/1.60 Valves
Brand: World Products
SKU: 824202
Rating: 4.3 (4 reviews)

4 Reviews

6 Questions

Incorporates extra-thick decks and walls for improved reliability
Machined for 3/8" screw in studs
Accepts early style perimeter or late model center bolt valve covers

Comb.chamber:

Select a comb.chamber

Bare/complete:

Select a bare/complete

Starting from

$652.16

/each

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Product Summary

Incorporates extra-thick decks and walls for improved reliability
Machined for 3/8" screw in studs
Accepts early style perimeter or late model center bolt valve covers
Hardened steel exhaust seats for unleaded gasoline
Features large intake and exhaust runners like double hump head

See more details

Key Specs

Cylinder Head Style	Select Bare/complete and Comb.chamber
Material Type	Cast Iron
Finish	Natural
Combustion Chamber Volume	Select Bare/complete and Comb.chamber
Intake Runner Volume	170cc

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Installation Details

Cylinder Heads Installation Instructions (824202)

Installation Tips

Large intake & exhaust runners like double hump head
Extra-thick decks and walls for improved reliability
Hardened steel exhaust seats for unleaded gasoline
Machined for 3/8" screw in studs (not included)
Raised valve cover rails to eliminate oil leaks
Accepts early style perimeter or late model center bolt valve covers
Can be milled for large springs
50-State Emissions legal

Assembled Heads Add:

Heavy Duty S.S. Valves
Steel Retainers & Locks
1.25" Hi-Po Valve Springs
3 Angle Valve Job

Head Flow @ .500 Lift
220 intake, 151 exhaust (Super Flow 1050)
232 intake, 161 exhaust (Super Flow 600)
All heads flowed with a standard .750" intake plate, without exhaust tube, and 28" of water.

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Details

More performance and less expensive than rebuilding used heads. No more searching junkyards looking for cylinder heads for your motor.Looks like the smog head on the outside, but has racing head features like an extra-thick deck, screw-in rocker arm studs, and raised valve cover rails.

Use 14 mm-5/8", .460 reach, taper seat spark plugs.

Item Details

Straight Plug, 2.02/1.60 Valves

Large intake and exhaust runners like double hump head
Extra-thick decks and walls for improved reliability
Hardened steel exhaust seats for unleaded gasoline
Machined for 3/8" screw in studs (not included)
Raised valve cover rails to eliminate oil leaks
Accepts early style perimeter or late model center bolt valve covers
Can be milled for large springs
50-State Emissions legal

Assembled Heads Add:

Heavy Duty S.S. Valves
Steel Retainers and Locks
1.25" Hi-Po Valve Springs
3 Angle Valve Job

Large intake and exhaust runners like double hump head
Extra-thick decks and walls for improved reliability
Hardened steel exhaust seats for unleaded gasoline
Machined for 3/8" screw in studs (not included)
Raised valve cover rails to eliminate oil leaks
Accepts early style perimeter or late model center bolt valve covers
Can be milled for large springs
50-State Emissions legal

Assembled Heads Add:

Heavy Duty S.S. Valves
Steel Retainers and Locks
1.25" Hi-Po Valve Springs
3 Angle Valve Job

Charts

S/R Head Application Chart (GIF)

Installation Guide (PDF)

Specs

Casting ID Number: I-052, I-058
Material: High density cast iron
Valve Seats: Intake (integral), exhaust (hardened)
Valve Guides: Integral cast iron
Spring Seats: Machined for 1.560" and 1.250"
Valve Diameter: 11/32" stem
Rocker Arm Studs: Screw-in style
Rocker Arms: 1.5 ratio (use of 1.6 ratio will require elongation of pushrod holes)
Intake Runner: 170cc, standard port location
Exhaust Ports: 65cc, standard location
Spark Plug: 14mm 5/8" .460" reach tapered style
Valve Job: Multi-angle intake and radiused exhaust
Valve Cover Rail: Raised w/ perimeter and center bolt pattern
Valve Angle: Stock 23°
Accessory Bolt Holes: Stock

Guides & Documents

Cylinder Heads Installation Instructions (824202)

Cylinder Heads Technical Information (824202)

CARB Warning

For race/ off road use only

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

CA WARNING:

Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov

CARB warning

Specifications

KEY SPECS
Brand	World Products
Cylinder Head Style	Select Bare/complete and Comb.chamber to see
Material Type	Cast Iron
Finish	Natural
Combustion Chamber Volume	Select Bare/complete and Comb.chamber to see
Intake Runner Volume	170cc

GENERAL
Exhaust Runner Volume	65cc
Combustion Chamber Volume Range	Select Bare/complete and Comb.chamber to see
Intake Runner Volume Range	170cc - 179cc
Exhaust Runner Volume Range	60cc - 69cc
Spark Plug Style	Straight
Intake Port Shape	Rectangle
Exhaust Port Shape	Square
Intake Valve Diameter	2.02"
Exhaust Valve Diameter	1.6"
Sold in Quantity	Each

Ratings & Reviews

4.3

4 Reviews

Overall Assessment

Customers generally express satisfaction with the product's quality, highlighting its practicality for specific situations like stock car class and demolition derby engines. Performance-wise, the product is reportedly on par with other market leaders. Despite some concerns about inconsistent casting quality, most users recommend it as a cost- and time-effective alternative to building up junk heads. Users find the product adequate for moderate-high performance stock street builds but advise that for competition and high power, better heads might be available.

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4.2

4 reviews

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Good heads

5.0

4 years ago

Jeff

Warren Ohio

Verified

Demolition derby engines

Would Recommend

Just as good as Camel Humps

4.0

4 years ago

North

Verified

Flows about the same as a camel hump head (with some work) but its brand new. Some of the castings aren't the greatest, such as the ones I received that had a lot of casting flash and grind/cut marks. Pretty expensive for what they are but they are the only aftermarket head we can run in our stock car class, and I'm sure the price reflects that.

Would Recommend

Good part. Needs a little more info on the page

4.0

4 years ago

Papaw

Verified

They don't give you much info in book on spring

Would Recommend

S/R Torker Bare Head

4.0

10 years ago

sanshonede

St Louis, MO

Verified

I think these heads are a lot better than wasting a lot of time and money on built up junk heads. I am working on an economical stock engine that will not carry a lot of old baggage. For competition and high power there are better heads but these will be adequate for my build.(moderate-hi performance stock street)

Would Recommend

Showing 4 of 4 reviews

Questions & Answers

6 Questions • 6 Answers

Sort Questions

What size combustion chamber?

by Robert

• 4 years ago

1 answer

View Answer

What valve length do these heads require and the size of push rod to use

by cody

• 10 years ago

1 answer

View Answer

Do these heads have to be milled in order to run guide plates? Also states if bout complete through you guys can handle.550 cam lift my cam is comp cams .532/.555 will these valve springs handle it?

by Kingpin

• 11 years ago

1 answer

View Answer

what are the degrees you are supposed to cut for the three angle valve job

by gatorade

• 12 years ago

1 answer

View Answer

Are these heads imca sport mod legal?

by proracer11

• 13 years ago

1 answer

View Answer

what lift camshaft can i go up to with these heads?

by mike

• 15 years ago

1 answer

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6 of 6 questions shown