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LOL, the Holden cars run a V8 that has exactly nothing in common with the factory Holden V8 engine. fairly sure the blocks are chev and fairly much everything else is custom made. There was a very good write up in street machine some time ago on the Vodafone 888 engine
to quote the article in Street Machine Commodores issue 36
"The Homologated Aurora block was developed for Oldsmobile's Indy Car program. It's basically a short-deck (8.25" Vs 9.025"), small block chev with a raised (.040") camshaft bore."
fairly much every part in the engine is either a control part or off the shelf item. not many secrets inside one of these engines any more because of operation blue print. Interestingly it mentions that 888 had to use a existing cam shaft when developing the engine, they choose a Walkinshaw grind running in 55mm roller bearings, however after the first 4 rounds V8supercars introduced a control item with less lift (.700" instead of .800"+they had with the old cam) which meant that 888 had to revise the Piston dome. If i remember correctly, 888 were rockets in the first few races when they switched to Holden but then the rest of the pack caught up some, now we know why
The only thing not really shown in the article are the intake ports and combustion chambers on the heads. From what can be seen though on other pictures is that they run a wedge design head with some big mother valves in em
to quote the article in Street Machine Commodores issue 36
"The Homologated Aurora block was developed for Oldsmobile's Indy Car program. It's basically a short-deck (8.25" Vs 9.025"), small block chev with a raised (.040") camshaft bore."
fairly much every part in the engine is either a control part or off the shelf item. not many secrets inside one of these engines any more because of operation blue print. Interestingly it mentions that 888 had to use a existing cam shaft when developing the engine, they choose a Walkinshaw grind running in 55mm roller bearings, however after the first 4 rounds V8supercars introduced a control item with less lift (.700" instead of .800"+they had with the old cam) which meant that 888 had to revise the Piston dome. If i remember correctly, 888 were rockets in the first few races when they switched to Holden but then the rest of the pack caught up some, now we know why
The only thing not really shown in the article are the intake ports and combustion chambers on the heads. From what can be seen though on other pictures is that they run a wedge design head with some big mother valves in em
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