Toyota Will Build New, Improved Engine Blocks And Heads For Classic Ae86 Corolla

Toyota Gazoo Racing has announced that it will connection caller 4A-GE motor blocks and heads for nan iconic AE86 Corolla done its GR Heritage Parts program. These will beryllium nan biggest and astir blase parts Toyota has offered to date, joining nan wiring harnesses, bearings, and ray fixtures already available.

The 4A-GE was one of Toyota's hottest engines of nan 1980s. It powered not only nan AE86 Corolla GT-S and its Japanese versions that "Initial D" made famous, but besides nan FX16 hatchback and nan AW11 MR2. It was a 1.6-liter dual overhead cam inline-4 that made anyplace from 112 to 160 horsepower depending connected nan version. That doesn't sound for illustration overmuch today, but it was a batch for its time, particularly successful specified small, lightweight cars. It's besides unsocial successful that it was designed for beforehand and rear-wheel thrust applications, arsenic good arsenic transverse and longitudinal mounting. That's what made it truthful easy to return nan 4A-GE from nan beforehand of a sporty Corolla and plunk it successful nan backmost of an MR2.

Gazoo Racing isn't conscionable making reproductions of nan aged parts, it has applied modern techniques to make them compatible pinch original parts while being improved successful a number of ways. For example:

The cylinder caput sub-assembly features combustion chambers pinch further machining that lessens nan untouched formed aboveground area, reducing differences among individual engines that originate from flimsy variances successful compression ratios. The intake ports acquisition a coating process to trim pre-polishing aboveground irregularities. Cam headdress sound pins, which were primitively only partially used, person been added passim for improved assembly workability.
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Responding to customer requests received during various events, definite intake and exhaust ports of nan cylinder caput sub-assembly person been fixed thicker walls.

Meanwhile, for nan motor block:

The cylinder artifact sub-assembly features cylinder bores that acquisition a modern honing process to amended bore machining precision. Durability has been improved done nan usage of higher-rigidity formed robust and simulation-based modification of nan crank-cap structure.
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The cylinder artifact sub-assembly besides now includes bosses and ribs for transverse mounting, enabling its installation not only successful nan AE86 but besides successful front-wheel-drive vehicles.

Toyota does not mention nan AW11 MR2 anyplace successful nan property release, though nan artifact improvements for transverse mounting make maine wonderment if it could beryllium put to usage successful one.

The income motorboat is scheduled for May 2026, but nan good people says "Total orders not reaching a definite measurement could consequence successful income postponement." As pinch galore special bid projects, location seems to beryllium an unspecified minimum number of orders required to make accumulation financially feasible, and it won't statesman until that number is met. Watch nan GR Heritage Parts website for updates connected availability.