Rv8 - GM reject ?
Discussion
Technically the rv8 is inferior to the lsx chevy engines but it will always be lighter so it scores points there especially in a light weight car. Once modded it gets better
It wasn't inferior to gen 1 chevy pushrod engines because they were made of anchor iron and I wouldn't have had one of those as a gift!
To be fair, the yanks just couldn't cast them properly. The buick v6 went on to become a very capable motor.
Boosted.
It wasn't inferior to gen 1 chevy pushrod engines because they were made of anchor iron and I wouldn't have had one of those as a gift!
To be fair, the yanks just couldn't cast them properly. The buick v6 went on to become a very capable motor.
Boosted.
Gazboy said:
Technically the rv8 is inferior to the lsx chevy engines but it will always be lighter so it scores points there especially in a light weight car. Once modded it gets better
It wasn't inferior to gen 1 chevy pushrod engines because they were made of anchor iron and I wouldn't have had one of those as a gift!
To be fair, the yanks just couldn't cast them properly. The buick v6 went on to become a very capable motor.
Boosted.
Originated in the 1960's didn't it? I think why people say it's inferior now, is because Ford and Chevy moved on, where the Rover unit is more or less the same as it was in the 60's????
Well, it has moved on in many ways but it never got a really decent set of heads, so performance was compromised. Everybody wanted decent heads but the factory never provided them. Buick developed the Grand National Heads for their performance engines and those cars made good power. Best we can get are probably the wild cat heads which are very like the Grand Nat heads
Boosted.
Not so much a General Motors reject as a project that didn't reach fruition. And a project that began much earlier, in 1948. I've heard all manner of criticisms of this (very successful) engine, often concerning cooling and oil delivery. Such problems could not be easily overcome without fundamentally redesigning the engine block. Fine, but then it would be a different engine...
Boosted, that is very interesting(sorry for the delay in responding)- I remember the 425 c.i. "Wildcat" motor in the '65 Riviera, did n't know about these heads you mention, wonder if they're still available..as to RV8 durability, Mr Plod's P6 Rovers used to clock 200k miles - not too bad..
runt said:
Boosted, that is very interesting(sorry for the delay in responding)- I remember the 425 c.i. "Wildcat" motor in the '65 Riviera, did n't know about these heads you mention, wonder if they're still available..as to RV8 durability, Mr Plod's P6 Rovers used to clock 200k miles - not too bad..
Wildcat heads are an aftermarket product made here in the UK for rover v8's. They aren't anything to do with the 425 motor. Ian Richardson has a company called wildcat engineering. As said, they look very like the V6 Grand National heads I've seen. I seriously thought about making some heads myself and then found Ian had already done them. The buyick heads are so much better then the rover stuff, pity they are missing 1 combustion chamber
Boosted.
Boosted LS1 said:
More fascinating facts-1948? BMW ? The depth of knowledge within "P-Heads " never fails to amaze..I just thought it wuz a 1962 Buick/Olds/Pontiac! Any more info most welcome - thanx all.
I'd second that as well, any more info on the bmw connection please.
Boosted.
Wasn't there something on TV or maybe EVO magazine about it (30 years of RV8)? Something about BMW urinating on the blocks to remove stress cracks (or alternatively that could have been a VERY odd dream).
Ian A.
IPAddis said:
runt said:
More fascinating facts-1948? BMW ? The depth of knowledge within "P-Heads " never fails to amaze..I just thought it wuz a 1962 Buick/Olds/Pontiac! Any more info most welcome - thanx all.
I'd second that as well, any more info on the bmw connection please.
Boosted.
Wasn't there something on TV or maybe EVO magazine about it (30 years of RV8)? Something about BMW urinating on the blocks to remove stress cracks (or alternatively that could have been a VERY odd dream).
Ian A.
Shirley the releiving of stress on BMW Blocks was the 4-cylinder iron engines used in 1600/2002 series in early 70's - then subsequently used for Formulae 3 ??? They discovered that a moderately used engine when re-built could endure twice (well, greater output)than a "virgin" cast block !!!
From the Rover V8 Book (can't remember the Author), there was nothing in it to suggest that Buick used a v8 block, let alone an aluminium one from BMW - in my poor dotage and anorak-ish reading a few years ago !!!
Happy to be shot to bits (or even 3-bits)
Trev McM
K4TRV said:
From the Rover V8 Book (can't remember the Author), there was nothing in it to suggest that Buick used a v8 block, let alone an aluminium one from BMW - in my poor dotage and anorak-ish reading a few years ago !!!
I think it was design elements that were copied from BMW. I could be wrong though, I've only heard it once.
Ian A.
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