Rv8 top hat advice

[ianstaffordshire]

Hello looking for a bit of guidance here, today I stripped down the 4.6 gems engine I brought to rebuild and fit in my tvr wedge eventually I was intending on fitting top hat liners as I read they can slip the old ones however now it's in bits it doesn't have liners fitted so is there any benefit from fitting them I intend to up the compression to 10.5 to 11:1 and fit a fast road cam it already is running canems ignition with slightly larger injectors.
What hp should it realise anything over 250 would be nice.

[GreenV8S]

ianstaffordshire said:

it doesn't have liners fitted

That would be extraordinary - are you sure about that? It seems more likely that you just aren't noticing the joint between the iron liners and the iron block.

[ianstaffordshire]

Just googled it all 4.6 engines have liners.

[Belle427]

250 bhp should be a good ballpark figure with what your suggesting, Im of the opinion if your going to build it do it right from the start.

[ianstaffordshire]

Top hats and pistons arrived today so definitely going the proper route

[Sardonicus]

250 hp should be easy with that spec and with a decent cam and that CR will make for a punchy build , good luck

[GreenV8S]

250 BHP seems quite a conservative target. My V8D built 4.6 produced 285 BHP in naturally aspirated form without going overboard on the cam.