I would'nt buy the "assembled" DART heads anyway, they come with 550 lift springs, cast steel valves, and steel locks. Get the bare heads for $485 each, buy the Patriot dual spring kit w/ titanium retainers for $255, and a set of stainless valves for $155. Thats $1380 for a "GOOD" set of DART heads.

Thats just what I would do.

 

Wow, never knew that. I would have reused my recently installed Patriot Extremes and bought valves. I could have saved even more..... I did get them with the upgraded 660 lift springs for $1550.

 

my assembled dart heads came with stainless valves, titanium locks and PSI beehive .625 lift springs

 

I talked with him, he wanted 2G's to do his magic.. IMO, its wasnt worth having over 3G's in a set of Dart heads.

 

Yeah I'm pretty sure anytime you have someone do worthwile porting work its going to cost you so much.. you might as well have gone with the afr/tfs heads

 

This is true, and these are very good springs.

 

This is so much BS I don't even know where to start. Cast valves? Good grief

Lets try drop forged valves, titanium retainers, PSI 1511 springs (the same ones Katech selected for all their LS7 build after exhaustive valve spring testing), US Seal valve seals and machined locks. I will put these part up against the heads you are running any day of the week.

 

Point taken. I don't have BRE heads either Just thowin it out there......

 

i am planning on doing that my self where are they 485$ each? and 155$ does that include 2.08 or 2.10?

 

I brought the dart 250's CNC'd heads and i had them upgrade the valves and those beehive springs to comp dual springs. havent fired up the motor yet but waiting to see what it will do with a big turbo.

 

DESCRIPTION Order Here
Item LS1 PRO1 205 Assembled
Material Aluminum
Intake Port 205cc
Chamber Volume 62cc
Intake/Exhaust Valves 2.02/1.60
Springs 1.290 Beehive
Notes All cylinder heads are sold individually.
Part Number/s Part Number Reference Sheet
PRICE: $931.72
QUANTITY:


Sorry...just had to Quote DART's website.....didn't see anything about dual PSI springs...?

For those who dont know...beehives are single springs!

 

Image is a representation of this part. Actual part may vary.
Dart 11021122 $885.95
Estimated Ship Date: Monday




Brand: Dart
Product Line: Dart Pro 1 LS1 Cylinder Heads
Part Type: Cylinder Heads
Part Number: DRT-11021122
Cylinder Head Style: Assembled
Cylinder Head Material: Aluminum
Cylinder Head Finish: Natural
Combustion Chamber Volume (cc): 62
CNC-Machined Combustion Chamber: No
Intake Runner Volume (cc): 225cc
CNC-Machined Intake Runner: No
CNC-Machined Exhaust Runner: No
Combustion Chamber Style: Heart
Intake Port Location: Standard
Exhaust Port Location: Standard
Intake Valves Included: Yes
Intake Valve Diameter (in): 2.050 in.
Exhaust Valves Included: Yes
Exhaust Valve Diameter (in): 1.600 in.
Valve Springs Included: Yes
Maximum Valve Lift (in): 0.625 in.
Outside Diameter of Outer Spring (in): 1.290 in.
Damper Spring Included: No
Number of Springs Per Valve: Single
Retainers Included: Yes
Retainer Material: Steel
Locks Included: Yes
Lock Style: 7 degree
Valve Stem Seals Included: Yes
Valve Stem Seal Style: PC seal
Rocker Arm Studs Included: No
Rocker Arms Included: No
Rocker Arm Nuts Included: No
Guideplates Included: No
Valve Cover Mounting Style: Centerbolt
Accessory Bolt Holes Drilled: Yes
Valve Guides Included: Yes
Valve Guide Material: Manganese bronze
Valve Seats Machined: Yes
Valve Seat Machine Style: 4-angle intake/3-angle exhaust
Valve Seat Material: Powdered metal
Steam Holes Drilled: No
Oiling Style: Through head
Machined for O-Ring: No
Heat Crossover: No
Quantity: Sold individually.

Cylinder Head, Pro 1 LS-1, Alum., Assm'd., 62cc Chamber, 225cc Int.Runner, Chevy, 5.7L, 1997-2004, Each

Check to make sure this part fits your application Upgraded cylinder heads for your LS1.
Dart calls these Pro 1 LS1 cylinder heads a secret weapon. Using their proprietary "Speed Flow" technology and the same aircraft-quality 355-T6 aluminum used in their Pro Stock heads, Dart has produced these affordable, yet powerful LS1-type cylinder heads. Five-axis, CNC-blended combustion chambers generate improved airflow and flame propagation, which increase both power and torque. With two available intake-port sizes that flow very well as-cast, there is a choice for strong street performance, as well as one for maximum street performance or bracket racing. These heads have extra material on top for added flexibility to upgrade the valvetrain, and they're set up for big valves with bronze valve guides and hardened seats. They're available either bare or assembled, and they're drilled for stock accessories with stock port locations, so you can use stock components.

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This is Summit's part description......Are they wrong???

 

Sorry...guys just dont like people telling me Im wrong when Ive personally ran 2 sets of DART's, and sell them on a regular basis.

For any who are interested in purchasing some DART's PM me...I'll beat most everyones prices.

 

The Beehive springs Dart uses are good for .625 lift unless they changed them from when I bought them.

 

I have an invoice here for the T4P Dart 225's with Pac behives, Ferrea valves ect. for $2710. They out flow and out perform the AFR's. The AFR 225's sell for $2475.00. So for $235.17 dollars more you can have a better head with the prings setup for you cam with the propper install hieghts ect.

And they require less fuel and timing to make more power. So you'll get your $235 back in no time.

 

O yeah the Dart 225's are a great choice for your stock bottom end.

 

I never said dual, the PSI 1511's are beehive.