tvr 4000 v8... size of valvles

[Naldi Lorenzo]

Hello, i have a question... i search the size of standard valvles (intake and exhaust) about the original heads of TVR Griffith 400, 450 and 500, and what camshaft have the Griffith 400 and 450. I search this info because i don't understand why the tvr v8 have a lot of horsepower respect v8 of range rover. ok that tvr v8 are engine with high ratio compression.... but i want understand if the heads and camshaft installed on tvr v8 are the same intalled in to range rover classic and p38 v8.
Thank's fot all info!