SMALL BLOCK CHEVY GM SBC 350 ALUMINUM CYLINDER HEADS 210cc w/ .550 Lift Springs

Small Block Chevy ProComp Assembled Aluminum Cylinder Heads

210cc Intake Port, 64cc Chamber, 2.02/1.6 Stainless Valves, .550 Lift Springs, Straight Plug 

 

Excellent Hydraulic and Small Solid Flat Tappet Camshaft Application

   

STUDS AND GUIDEPLATES ARE FREE!!

 You are bidding on a new pair of ProComp Motorsports small block Chevy aluminum cylinder heads. These heads are fully assembled, ready to bolt on. Comes with features normally found in heads costing much more, including: 

• Hardened exhaust seats for unleaded fuel compatibility
• Bronze valve guides
• Manufactured with aircraft quality high grade aluminum alloy
• Multi-angle seat design for improved flow at low lifts
• Advanced port design for improved flow at all lifts
• Advanced combustion chamber design allows superb flame travel and burn
• Additional pushrod clearance machined along outside port walls
• Can use either early or late (Vortec) intakes
• Can use either perimeter bolt pattern or centerbolt valve covers
• Threaded accessory holes in ends of heads
• Retains stock 23 degree angle and intake/exhaust bolt locations
• Thick deck to resist warping and allow for additional milling if desired
• Does not require offset rocker arms

Assembly features:

• 1.26" diameter valve springs, good to .550" lift 
• Stainless steel 1 piece swirl polished valves
• Chrome Moly steel retainers
• Hardened steel valve locks

 

 

 These heads will work for all small blocks including 400s (no steam holes). Heads are drilled for both the earlier style intake bolt pattern (pre '87) that had all bolts going in at an angle and the newer Vortec style that has 4 on each side going straight down in.

 

 

 

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PC3003 Head Specs

Intake Port Volume	210cc
Combustion Chamber	64cc
Intake Valve Size	2.02"
Exhaust Valve Size	1.60"
Valve Stem Dia.	11/32"
Intake Port Size	1.22" W x 2.20" T*
Exhaust Port Size	1.5" W x 1.4" T
Max Spring Dia.	1.625"
Exhaust Crossover	No
Plug	Straight
Weight (per head - bare)	19 lbs.

 

 

 

 

 

 

 

 

 

* Please note intake port height. These are a raised runner design. Stock and some aftermarket intakes may not cover port, you will need to compare this to the intake you plan to run. We recommend either a Fel-Pro 1206 intake gasket when using early style intake types or our KMJ 1255 when using Vortec style intakes. Both may require slight trimming but are very close. The Fel-Pro 1405 is probably the best exhaust gasket choice although the 1404 would work also with minor trimming. See our ebay store for gaskets. Any of the above qualifies for free shipping when also ordered with these heads. Please request a combined invoice to receive discount. If you have any questions feel free to call us at (515)733-2890

 

PC3003C943 Assembly Specs

Valve Material	Stainless Steel
Valve Type	1 piece, swirl polished
Valve Spring Dia.	1.26"
Max Recommended Lift	0.550" (flat tappet)

 

 

 

 

 

 

 

PC3003 Flow Numbers

Flow numbers are from ProComp. Measured on SuperFlow SF600 @ 28"Hg with 1/2" radius intake plate and short stack exhaust tube

Intake Lift	CFM	Exhaust Lift	CFM
.100"	63.0	.100"	52.2
.200"	117.1	.200"	97.8
.300"	163.1	.300"	132.9
.400"	203.6	.400"	161.9
.500"	230.3	.500"	180.0
.600"	248.2	.600"	189.2
.700"	252.0	.700"	192.1

STUDS AND GUIDEPLATES ARE FREE!!

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 These heads are a great choice and at a great price. Perfect for high performance/race applications where a quality head at an affordable price is desired.

 210cc intake port works well out of the box on engines with around 500-600 projected HP. Further gains can be had with gasket matching and porting techniques. Works especially well for larger displacement and stroker engines such as 383 and 400 engines.

 Aluminum material allows the benefit of higher compression ratios on the street compared to iron heads, not to mention that it saves nearly 20 lbs per head verses the factory ones!

 You can also use standard off the shelf items such as pistons, rocker arms, guideplates, studs (accepts either 3/8" or 7/16"), and stud girdles.

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See Our Ebay Store For More Related Items:

Head Studs

Stud Girdles

Gaskets

Valve Springs

Rocker Arms

More Valvetrain

Cylinder Heads

Click on our Ebay Store image to view our entire listings of High Performance Products

Payment:   

We do accept Paypal and U.S. based credit cards (Visa/MC/Discover). Please make payment within 7 days of auction end. You can call us at (515)733-2890 for credit card payments or questions. 

STORE HOURS FOR TECH AND PAYMENTS
515-733-2890

MONDAY-FRIDAY 7:00AM-6:00PM
SATURDAYS 8:00AM-4:30PM

Shipping:

We do not ship to PO Boxes 

• Within the lower 48 states:
  The listed fixed price shipping is to the lower 48 states only. All others will be additional.

We are happy to combine shipping on Ebay auctions when possible. Normally it will be the highest shipping amount plus half the shipping amount on other items, sometimes better on orders of small items. Some items are not combined due to size or weight such as crankshafts, torque converters, radiators, cylinder heads, etc. On multiple item purchases the shipping amount is not figured automatically during checkout so please request a new invoice or wait for us to send a combined invoice so we can adjust the total.

We do have  auctions that state free shipping when purchased with certain items such as grommet kits with valve covers, pickup tubes with oil pans, etc. If purchasing items with free shipping, please request a new invoice before paying. The shipping amount is not figured automatically during checkout. We are unable to refund your Paypal once payment has been sent. If you have any doubt what your shipping will be please feel free to call us at 515-733-2890 during business hours.

• International:
  We use USPS Priority when possible (please see above note) which has the best combination of price, delivery time, and reliability. We strongly encourage you to email for a s/h quote before bidding to areas outside the lower 48 states. Please include your postal code so we can determine the shipping. Paypal payments $250 and above will ship only by UPS/FedEx and require a signature on delivery.

Shipping based on weight and number of packages. We do try to combine as many items into one box as we can.  

Shipping amount is not figured automatically during checkout. Please request updated invoice after bidding. Some countries have size limit requirements that affect certain large items such as radiators and can not be shipped normal USPS Priority.

All items will be declared as actual value, we do not mark as "gift" or at a reduced value! Shipping costs are not figured into the actual value.

• Canada orders:
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