Dart Pro Ls1 Heads 205's
10-01-2010, 09:35 PM
#1
On The Tree
Thread Starter
iTrader: (8)
Join Date: Apr 2010
Location: Independence MO
Posts: 165
Likes: 0
Received 0 Likes
on
0 Posts
Dart Pro Ls1 Heads 205's Category: Engine - Power Adders
Price: $700
Part Fits: 93-02 Chevrolet Camaro, 93-02 Pontiac Firebird
Location (State): MO
Item Condition: Brand New
Shipping Information: Item Can be Shipped
LS Engine?: Fits LS Engine
I am not sure if dart is still making these heads as I can't find them on their site but the lowest i've seen priced on ebay is $1,000 for this set. If I figured it up correctly these raise compression of a stock ls1 from 10:1 to 10.8:1
I do not have to sell these just figured someone might find use for them before I can, they are new. The person I bought them from opened one and it looked like there was some port work so I opened the other to see if it was the same and it is. These can be ported to 225's and maybe more but im not sure about that. I would like $700 for them including shipping and paypal. I paid $650 and drove a good amount to pick them up so what i'm asking for them is not a profit. They will be shipped in the dart boxes as they came. I would trade across for a new yank ss3600 for a 4l60e trans. I would probably also trade for an oem ss hood in good structural condition.
If you have any questions or would like me to try to take pics I can, thanks.
Here is some info I saved from the sale,
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.
11/32 valve
stems instead of the standard 8mm
