Category: Racing Parts
Price: $650
Location (State): MO
Item Condition: Brand New
Shipping Information: Item Can be Shipped
Engine: LS1/LS6
LS Engine?: Fits LS Engine

i bought these a month ago and decided to sale the car, i would like to get 650 out of them,

here the info from the site

Dart aluminum cylinder heads for GM LS series V8 small block engines provide higher performance and greater versatility than factory designs at an affordable cost. Dart's precision casting techniques and superior C355-T61 aerospace aluminum alloy produce as-cast ports that rival fully ported heads. Two intake port sizes, 205cc and 225cc, cover applications from trucks and street machines to racing applications. Standard multi-angle intake seats, radiused exhaust seats and CNC-machined valve bowls enhance airflow, while manganese bronze valve guides and interlocking valve seats ensure long-term reliability. Extra-thick walls provide material for porting, and additional metal above the ports accommodates valve-train upgrades.

9/19/2007
Dart LS1 Aluminum Cylinder Head
Part#
Material: 355T6 alum alloy
Comb Chambers: 62cc
Intake Valve Dia: 2.02” & 2.05”
Intake Port volume: 205cc & 225cc
Intake Port Dim: 1.020”w x 3.170” -205cc / 1.030”w x 3.230” – 225cc
Int Port Location: Stock
Intake Gasket: MS 92438 or GM #89017465
Exh Valve Dia.: 1.600”
Exh Port volume: 85cc
Exhaust Port Dim: 1.650”w x 1.400”
Exh Port Location: Stock location & bolt pattern
Exhaust Gasket: Fel-Pro# 1438
Flow, Intake: 290cfm @ .500” lift / 28”
Flow, Exhaust: 205cfm @ .500” lift / 28”
Head Bolts: ARP 134-3609 / Stock TTY
Head Studs: ARP 134-3610
Manifold: Stock / Stock type / LS6
Milling: (.0055” = 1cc) Flat Mill
Pistons: Stock style
Push Rod length: Stock (7.400”)
Push rod Guide Plate: N/A
Retainers: Titanium ( 7°)
Spark Plug: Autolite 3934 / NGK FR5, BKR6E
Spring Pockets: 1.350” OD
Springs: 1.290” Beehive - PSI
Valve Length: 4.900” Intake / 4.940” Exhaust
Valve Stem Dia: 8mm
Valve Train: Stock
Valve Guides: .439” OD Mag-bronze
Valve Guide length: 2.100”
Valve Guide clearance: .0013” Intk / .0015” Exhst
Valve Guide Spacing: Stock
Valve Seats: Hardened Ductile Iron, .006” press
Valve Seat dim. Int - 2.160” x .350” Exh - 1.650” x .350”
Valve Seat angles: Int = 32° - 45° - 60° - 70° - 90° Exh = 37° - 45° - radius
Stud Girdle:
Torque: OE / 11mm ARP bolts 70 ft.lbs. 8mm 23ft.lbs.

 

so what is the info on "these" heads? valve size? complete? what springs? what runner size? Are they used? ever bolted on?

 

Category: Racing Parts
Price: $650
Location (State): MO
Item Condition: Brand New
Shipping Information: Item Can be Shipped
Engine: LS1/LS6
LS Engine?: Fits LS Engine


i bought these a month ago and decided to sale the car, i would like to get 650 out of them,

here the info from the site

Dart aluminum cylinder heads for GM LS series V8 small block engines provide higher performance and greater versatility than factory designs at an affordable cost. Dart's precision casting techniques and superior C355-T61 aerospace aluminum alloy produce as-cast ports that rival fully ported heads. Two intake port sizes, 205cc and 225cc, cover applications from trucks and street machines to racing applications. Standard multi-angle intake seats, radiused exhaust seats and CNC-machined valve bowls enhance airflow, while manganese bronze valve guides and interlocking valve seats ensure long-term reliability. Extra-thick walls provide material for porting, and additional metal above the ports accommodates valve-train upgrades.

9/19/2007
Dart LS1 Aluminum Cylinder Head
Part#
Material: 355T6 alum alloy
Comb Chambers: 62cc
Intake Valve Dia: 2.02” & 2.05”
Intake Port volume: 205cc & 225cc
Intake Port Dim: 1.020”w x 3.170” -205cc / 1.030”w x 3.230” – 225cc
Int Port Location: Stock
Intake Gasket: MS 92438 or GM #89017465
Exh Valve Dia.: 1.600”
Exh Port volume: 85cc
Exhaust Port Dim: 1.650”w x 1.400”
Exh Port Location: Stock location & bolt pattern
Exhaust Gasket: Fel-Pro# 1438
Flow, Intake: 290cfm @ .500” lift / 28”
Flow, Exhaust: 205cfm @ .500” lift / 28”
Head Bolts: ARP 134-3609 / Stock TTY
Head Studs: ARP 134-3610
Manifold: Stock / Stock type / LS6
Milling: (.0055” = 1cc) Flat Mill
Pistons: Stock style
Push Rod length: Stock (7.400”)
Push rod Guide Plate: N/A
Retainers: Titanium ( 7°)
Spark Plug: Autolite 3934 / NGK FR5, BKR6E
Spring Pockets: 1.350” OD
Springs: 1.290” Beehive - PSI
Valve Length: 4.900” Intake / 4.940” Exhaust
Valve Stem Dia: 8mm
Valve Train: Stock
Valve Guides: .439” OD Mag-bronze
Valve Guide length: 2.100”
Valve Guide clearance: .0013” Intk / .0015” Exhst
Valve Guide Spacing: Stock
Valve Seats: Hardened Ductile Iron, .006” press
Valve Seat dim. Int - 2.160” x .350” Exh - 1.650” x .350”
Valve Seat angles: Int = 32° - 45° - 60° - 70° - 90° Exh = 37° - 45° - radius
Stud Girdle:
Torque: OE / 11mm ARP bolts 70 ft.lbs. 8mm 23ft.lbs.



does this help any?

 

I would be interested in them and could look at them/ buy them wednesday in person? Also have thursday off if that would be better.

I take it these were never installed?

 

So are these 205s or 225s???????

 

its a 205 but can be ported to 225

 

Whats the valve size? You gave a general description of Dart heads. What about the ones you have?

 

11/32 valve

stems instead of the standard 8mm

http://sdparts.com/details/dart-machinery/dar11010010

 

valve size and what springs? Were they on anything?

 

there bare and there brand new, so no they were not on anything.

 

are these sold if not pm me about closing a deal