7age Stroker Kit 1.9L

NZD$4,500.00 ex TAX

Head Type

Bore Size



Conrod Type



MRP 7a (aka 9age) Stroker Kit

After huge request we have designed a 7age/9age stroker kit (1900cc).
This is not your generic stroker kit with bad rod/stroke ratios or some random crankshaft with no thought put into the design. Huge amount of thought went into the design of this kit.
We are not a generic rod/crank supplier, we specialise in 4age performance and focus solely on making the best parts for your 4age.
Our kits are being used all around the world with power figures past 900hp on 45psi of boost! or in N/A form 250hp+ and 10,000rpm.

The pistons in this kit are a special custom design where we worked with CP to get what we needed.
Rod/stroke ratio is 1.52:1

Custom MRP 90mm Billet 4340 Crank based on the TRD/Atlantic Crank Design
Large counter weights to dampen harmonics at high RPM
Extra large section through rod journal to counter weight for increased strength and reduced flex in one of the most critical areas of load
8 Bolt to take 4age flywheels
OEM 4age journal sizes so you can use the OEM 4age size bearings
Oil gallery holes have lead in/outs to help increase oil flow to the bearings.
Oil gallery feeds are the same as the 4age crank meaning constant 360 degree of oil supply to the journals at all times unlike the 7afe crank.
Dual offset crank sprocket keyway
Nitrided, Fully balanced

Custom MRP Billet 4340 conrods with ARP 2000 bolts
Around 6% longer than the 7a rods
H-beam Heavy Duty
Rods are notched on the journals which acts as an oil squirter up into the bottom of the piston
ARP 2000 Rod Bolts
Nitrided & Fully balanced
**Optional Saenz Conrods available for those seeking super high end rods. These are 20g lighter than our MRP rods – Saenz are one of the best in the world** +$900

Custom MRP Forged Pistons by CP
Low compression height, 20v & 16v available in both N/A (242g) & Turbo (262g) to any compression you require.
Rings & gudgens supplied (80g N/A, 90g Turbo)
Special short skirt design to reduce friction which helps power wise & reliability
Ceramic coating on the domes to reduce heat to the pistons and keep the heat in the chamber (optional)
Telfon coated skirts to reduce friction and also provides a dry film lubrication

Power rating of the kit 900hp+ & 10,000rpm+

Must be used with a 7afe block
No modifying of the block is required
Takes 4age flywheels
Crank ladders, BHJ race Harmonic pulley and cams gears are optional extra.

**All parts manufactured in the USA**

Other parts available on request:
Toyota OEM rebuild gasket kits
ARP Head & Main Studs
7a Crank sprocket mod
Twinplate clutch kits
Supertech Valve train parts
Head Porting Service

We can supply our cranks with custom rods or just custom pistons if you want to use the 4age parts that you have already obtained – Please contact us for pricing

Additional information

Weight 21 kg


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