Description
Single Spring, Ti Retainers
Single valve springs and titanium retainers for the 2JZ-GTE, proven to 9000 RPM and rated for up to 800 whp with no machine work.
9000 RPMProven rev limit
800 whpMax power rating
6AL4V TitaniumRetainer material
24 valvesComplete head set
Overview
The Brian Crower BC0300 kit upgrades the Toyota 2JZ-GTE valvetrain with single valve springs (wound by PAC Racing from chrome silicon alloy) and CNC-machined 6AL4V titanium retainers, a complete set for all 24 valves. It controls valve motion at high RPM to resist float and surge, with no machine work required.
Built for turbocharged 2JZ-GTE builds turning higher RPM or running aggressive cams and boost, where OEM springs surge or float. Titanium retainers weigh roughly 40% less than the factory steel units (per Brian Crower), cutting valvetrain mass for improved high-RPM stability.
Specifications
Part numberBC0300 (kit); spring BC1300, retainer BC2300-24
Spring typeSingle valve spring (PAC Racing chrome silicon alloy)
RetainerTitanium, CNC-machined from 6AL4V round bar
Seat pressure80 lbs @ 1.325"
Open pressure158 lbs @ 0.980"
Coil bind0.810"
Max net cam lift0.460" / 11.68mm
Ratingup to 9000 rpm / 800 whp
Set contentsComplete 24-valve head set — 24 springs + 24 titanium retainers
Machine workNone required; uses OEM spring seats
What's in the box
- 24 single valve springs (BC1300)
- 24 titanium retainers (BC2300-24)
Fitment
ApplicationToyota Supra 2JZ-GTE
InstallRequires cylinder head disassembly and a valve spring compressor; verify installed height and check clearance to coil bind against your cam lift before final assembly.
Kit also fits 2JZ-GE and 1JZ-GTE — confirm your exact cylinder head and that cam lift stays within the rated 0.460" net lift before ordering.
Best suited for
High-RPM builds
Turbo 2JZ-GTE
Aggressive cams
Rated to roughly 800 whp / 9000 rpm — for higher power or very high-lift cams step up to Brian Crower's dual spring kit (BC0310). Covers springs and titanium retainers only; confirm whether valve locks/keepers and stem seals are needed separately.
Fast dispatchShips in 24–48h
Genuine productAuthentic Brian Crower
Easy returns10-day returns, unused items
Fitment helpWe'll confirm before you buy
Returns
Return within 7 days of purchase, provided the item is unused and in its original condition and packaging. Taxes are non-refundable.
We can’t take back parts that have been fitted or modified, unsealed electrical components, ECUs and sensors, opened gaskets, seals and o-rings, or clearance items. Parts we order in specifically for you can’t be returned for change of mind — we’ll tell you before you order if yours is a special order.
If a part is faulty, damaged in transit or isn’t what you ordered, we’ll put it right and cover the return shipping.
Please contact us before returning anything. Full terms are in our Refund policy.
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