JavaScript Disabled

Your JavaScript appears to be disabled. JavaScript is necessary for various functions, such as order checkout, to operate on this web site. Please ensure that JavaScript is enabled.

Outdated Internet Browser Detected

Your web browser appears to be out of date. Soon you will not be able to create a secure connection to our web site using TLS 1.0. Please upgrade your browser from current version( ). Learn more about TLS.

In-Store Pickup Location

Trick Flow® Super 23® 175 Cylinder Heads for Small Block Chevrolet TFS-30310002

Trick Flow Specialties TFS-30310002 - Trick Flow® Super 23® 175 Cylinder Heads for Small Block Chevrolet

Image is a representation of this item.
Actual item may vary.

Loading media


In progress

Cylinder Head, Super 23® 175, Fast As Cast®, Assembled, 1.470 in. Springs, Chevy, Small Block, Each

Estimated Ship Date: Loading...Processing Today Would you rather pick it up? Select Location

  • Order this item and get free delivery and handling on your entire order! Offer excludes truck freight and oversize fees. Valid on orders shipped in the contiguous United States.

Hazardous Material Warning
WARNING
WARNING: Cancer and Reproductive Harm For more information, visit www.P65warnings.ca.gov.

Brand: Trick Flow Specialties

Manufacturer's Part Number: TFS-30310002

Part Type: Cylinder Heads

Product Line: Trick Flow® Super 23® 175 Cylinder Heads for Small Block Chevrolet

Summit Racing Part Number: TFS-30310002

UPC: 842645106101

Cylinder Head Style: Assembled

Cylinder Head Material: Aluminum

Intake Port Shape: Rectangular

Intake Valve Diameter (in): 1.940 in.

Cylinder Head Finish: Natural

Combustion Chamber Volume (cc): 56

CNC-Machined Combustion Chamber: No

Intake Runner Volume (cc): 175cc

Exhaust Runner Volume (cc): 67cc

CNC-Machined Intake Runner: No

CNC-Machined Exhaust Runner: No

Combustion Chamber Style: Heart

Intake Port Location: Standard

Exhaust Port Shape: D-port

Exhaust Port Location: Standard

Spark Plug Style: Angle

Intake Valves Included: Yes

Exhaust Valves Included: Yes

Exhaust Valve Diameter (in): 1.500 in.

Valve Springs Included: Yes

Maximum Valve Lift (in): 0.540 in.

Outside Diameter of Outer Spring (in): 1.470 in.

Damper Spring Included: Yes

Number of Springs Per Valve: Single

Retainers Included: Yes

Retainer Material: Chromoly steel

Locks Included: Yes

Lock Style: 7 degree

Valve Stem Seals Included: Yes

Rocker Arm Studs Included: Yes

Rocker Arm Nut Thread Size: 3/8-24 in.

Rocker Arms Included: No

Rocker Arm Nuts Included: No

Guideplates Included: Yes

Guideplate Pushrod Size: 5/16 in.

Valve Cover Mounting Style: Perimeter bolt

Accessory Bolt Holes Drilled: Yes

Intake Valve Angle: 23

Exhaust Valve Angle: 23

Valve Guides Included: Yes

Valve Guide Material: Bronze

Valve Seats Machined: Yes

Valve Seat Machine Style: 3-angle

Valve Seat Material: Ductile iron

Steam Holes Drilled: No

Oiling Style: Through pushrod

Machined for O-Ring: No

Heat Crossover: Yes

Quantity: Sold individually.

Notes: These heads only fit engines with a 3.736 in. bore or larger. Requires drilling steam holes into head on 400 c.i. applications.

CARB EO Number: D-747-1 (pdf)
To see a list of qualifying vehicles, enter CARB EO Number D-747-1

Emissions: California EO Approved

In-Store Pickup: Choose In-store pick-up (OH, NV, GA, TX) on our web site.

Calculator Compression Calculator

Trick Flow® Super 23® 175 cylinder heads give you performance that closely matches CNC-ported cylinder heads—for about the same price as ordinary cast heads! Made to outperform factory small block Chevy heads on 283-350 c.i.d. street performance engines, the Super 23 175 heads feature small cross-section intake runners to promote low-rpm torque and high-rpm horsepower on small bore engines. Fast As Cast® runners duplicate the runner profile and performance levels of CNC-ported heads. Other features include angled spark plugs, raised valve cover rails, and extra-thick decks and walls for porting.

Trick Flow® Super 23® 175 heads are a direct fit, high performance replacement for factory heads and accept most original accessories. They are emissions-legal under CARB E.O. #D-747-1 for 1995 and earlier GM vehicles with Chevy 262–350 engines and accept most accessories. The heads are available fully assembled or as bare castings. Sold individually.

Warranty

Questions & Answers Ask a Product Question
Q:

What are the valve springs set up for hydrolic roller or flat tappet? I've looked several times never says anywere.

Asked by ANDREW on March 11, 2017

A:

These heads are for 1986 and earlier engines, meaning they are for flat tappet cams. 87 and up were factory roller cams.

MICHAEL from WI answered on August 22, 2017

+See All Answers (2) Answer This Question

Q:

What spark plug heat range would be recommended for 9.5 compression? Preferably in ngk thanks

Asked by KORY on November 19, 2018

A:

Thank you for your question. Trick Flow Specialties TFS-30310002 cylinder head have a recommend spark plug NGK Spark Plugs FR5/7373 with a heat range of five.

Summit RacingSummit Racing Answer - December 11, 2018

Answer This Question

Q:

What felpro intake gasket is recommended for these heads or other brand

Asked by KORY on October 27, 2018

A:

Thank you for your question. The recommended intake gasket for our Super 23 175 cylinder heads is the Fel-Pro part number FEL-1256.

Trick Flow Specialties Trick Flow Specialties Answer - October 29, 2018

Answer This Question

Q:

Is this sold as a direct bolt on "all inclusive" kit? In other words, is this a single swap bolt on that requires no additional parts besides new head gaskets and possibly fresh bolts?

Asked by DANIEL on August 05, 2017

A:

Thank you for your question. Our TFS-30310002 cylinder head will bolt onto any generation 1 small block Chevy, but with so many variables involved you will need to check pushrod length, piston to valve clearance and we recommend using roller rocker arms like TFS-31400510.

Trick Flow Specialties Trick Flow Specialties Answer - October 25, 2018

Answer This Question

+See All Questions (9)

Most Helpful Reviews Review This Product

2 Customer Reviews for Trick Flow Specialties TFS-30310002 - Trick Flow® Super 23® 175 Cylinder Heads for Small Block Chevrolet

Average Customer Review

5 Star

(2)

4 Star

(0)

3 Star

(0)

2 Star

(0)

1 Star

(0)

+See All 2 Reviews

Trick Flow 23 175 Heads

TFS-30310002
If your working on building any small bore small block Chevy (305 or 307), these are the heads for you!! 56cc builds compression / with the right cam / it adds another 100 + horsepower! add Trick Flow - Full Roller Rockers + Trick Flow Intake manifold with 2-2 1/2" exhaust - let her breath. Great performing Heads!!!!

2 of 2 found this review helpful.

report abuse

Report Abuse X

If you feel that this review is inappropriate and should be removed from the site, report it to us by clicking the "Report Abuse" button below.

Cancel

Reviewer: from MI

Date: July 21, 2015

Appearance
Ease of Installation
Price/Value
Quality

Trick Flow 175 street heads

Summit RacingSummit Racing Verified Purchase

TFS-30310002
Packaged well, included detailed intructions with suggested parts and accessories, also very well made. Worked perfect for my application, building a ZZ4 style 350sbc.

0 of 1 found this review helpful.

report abuse

Report Abuse X

If you feel that this review is inappropriate and should be removed from the site, report it to us by clicking the "Report Abuse" button below.

Cancel

Reviewer: from MD

Date: June 25, 2014

Appearance
Ease of Installation
Price/Value
Quality

Some parts are not legal for use in California or other states with similar laws / regulations

Back To Results
Email this page
Sign Up for Email X