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
Shipping & Return
Return Policies
Returns will be accepted for up to 10 days of Customer’s receipt or tracking number on unworn items. You, as a Customer, are obliged to inform us via email before you return the item, only in the case of:
– Received the wrong item.
– Item arrived not as expected (ie. damaged packaging).
– Item had defects.
– Over delivery time.
– The shipper does not allow the goods to be inspected before payment.
The returned product(s) must be in the original packaging, safety wrapped, undamaged and unworn. This means that the item(s) must be safely packed in a carton box for protection during transport, possibly the same carton used to ship to you as a customer.
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