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The Race Stage 1 package has been run to over 9,500rpm and 2,000hp and is what we use in most of our GT1R Long Block packages. For people looking to push the absolute limits of VR38 based performance, the Race Stage 2 heads are exactly what you need. In addition to the modifications and parts in the Stage 1 heads, we replace both the intake and exhaust seats with a custom beryllium copper valve seat.
All cylinder head packages require cores to be supplied or a core charge will be added for a new pair of heads and cam buckets.
Both packages include setting valve lash if cams are supplied or purchased with the cylinder heads. We offer/recommend our GT1R camshafts for most applications ranging from 800-2,500hp.
The Race Stage 1 and Race Stage 2 head packages both include a complete freshening of the cylinder heads. Heads are fully disassembled, cleaned, and inspected prior to CNC porting. All components in the valvetrain are replaced with the best offerings from Ferrea. The 1mm oversized Competition Plus valves, bronze valve guides, seals, dual valve springs, seat locators, valve locks, and titanium retainers assure you are getting the best combination of performance and reliability.
The CNC porting optimizes the intake and exhaust ports for increased airflow, which improves power, torque, and boost response. A big advantage to CNC porting vs hand porting is consistent results with equal flow in all ports, every time. HP gains will vary based on many variables, but a Stage 1 head package with our GT1R camshafts will generally pick up in the neighborhood of 75-125hp while improving response and widening the powerband considerably.
Package Includes:
All cylinder head packages require cores to be supplied or a core charge will be added for a new pair of heads and cam buckets.
Both packages include setting valve lash if cams are supplied or purchased with the cylinder heads. We offer/recommend our GT1R camshafts for most applications ranging from 800-2,500hp.
The Race Stage 1 and Race Stage 2 head packages both include a complete freshening of the cylinder heads. Heads are fully disassembled, cleaned, and inspected prior to CNC porting. All components in the valvetrain are replaced with the best offerings from Ferrea. The 1mm oversized Competition Plus valves, bronze valve guides, seals, dual valve springs, seat locators, valve locks, and titanium retainers assure you are getting the best combination of performance and reliability.
The CNC porting optimizes the intake and exhaust ports for increased airflow, which improves power, torque, and boost response. A big advantage to CNC porting vs hand porting is consistent results with equal flow in all ports, every time. HP gains will vary based on many variables, but a Stage 1 head package with our GT1R camshafts will generally pick up in the neighborhood of 75-125hp while improving response and widening the powerband considerably.
Package Includes:
- Ferrea high RPM valvesprings and titanium retainers
- Ferrea SS valves
- Bronze valve guides
- Full assembly high performance valve job.
Proposition 65
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
T1 Race Development was founded in 2005, by 10 year import performance industry veteran Tony Palo. This expertise and experience poised this Dallas based business to quickly become what it is today, one of the leading aftermarket tuning and fabrication shops in the country.
The business has grown with the philosophy of making sure everything works right the first time and never cutting corners. This has been achieved by an unrelenting pursuit of finding the best parts, picking the best people, and never being complacent in trying new things or developing new solutions. Today, 13 years later, we are proud of our reputation for offering unparalleled service, parts, and R35 GTR project builds. It takes a team to provide greatness is so many areas, and an amazing team we have.
T1 Race Development has carefully chosen its product offerings, and all products are guaranteed to be first quality merchandise. Many products carry a manufacturer’s warranty. T1 Race Development will pass this warranty on to the original buyer. Parts purchased used or purchased through unauthorized distribution channels will no longer carry a warranty whatsoever. There is no warranty, expressed or implied, on any parts used for competition or track events. Additionally, there is no warranty on electrical parts. Buyer shall notify T1 Race Development immediately upon discovery of any product defect.
Defective items must be returned for replacement in accordance with our return policy and at buyer’s expense. We will replace all defective items that meet our return/replacement requirements, but will not accept any liability for loss or inconvenience caused by their use or failure. All warranties are voided if defect has been caused in whole or in part by improper installation, abuse or misuse. We reserve the right to withhold issuance of credit until returned defective part has been examined and tested.
Defective items must be returned for replacement in accordance with our return policy and at buyer’s expense. We will replace all defective items that meet our return/replacement requirements, but will not accept any liability for loss or inconvenience caused by their use or failure. All warranties are voided if defect has been caused in whole or in part by improper installation, abuse or misuse. We reserve the right to withhold issuance of credit until returned defective part has been examined and tested.
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Things
| Sale price | None |
| Wholesale price | $6,215.65 |
| Shipping |
Weight: 70.00 Length: ? Width: ? Height: ? |
| Product Added At | Friday 11 October, 2019 |
| Product Modified At | Tuesday 27 May, 2025 |
| Imported By | ETLOverride |
| Last Edited By | kathi@vividracing.com |
| View In Admin |
Emissions Info
| Carb Approved | No |
|---|---|
| Carb Number | - |
| Epa Status | - |
| Prop65 | - |
| Carb Required | - |
Vendors
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| Vendor | Inv | Cost | Retail | Jobber | MAP | Core | Updated | |||
|---|---|---|---|---|---|---|---|---|---|---|
| T1 Race Development | $5,267.50 | $7,525.00 | $6,396.25 | $7,525.00 | ? | 2025-05-27 16:39:37 |
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