cheapest hp for RR Classic 3.9Efi

Rover every time in a RRC - the Chevy is too heavy and leaves the vehicle unbalanced.

So, here's my engine choices:

(1) Rpi 4.6 LPG: 280cu in and 280 bhp. Cost: £6,500 inc VAT

(2) Chevy V8 LPG: 350 cu in and 350 bhp. Cost: I don't know

Can you help me make a decision based on value-for-money? I'd like to hear comments from Chevy choosers as well as hot Rover fans.

Many thanks in advance.

As for (1), take their quoted bhp with a BIG pinch of salt, more likely to be around 250ish tops. I have dyno graphs for a 4.7 with a hot cam, proper tuned headers, stage 2 heads and re-mapped efi system.... 252bhp, 295lb/ft. option (2) will most likely break the gearbox!! (ZF4HP22 rangie/disco auto can handle 300lb'ft - just! Not sure of manual box max torque.) Badger.

Thanks. I haven't been on for over 18 months. Defected from the Porsche google group, but now finding the RR more of a philosophical thing.

Anyway, I'm rambling. It seems that both will cost the same. Maybe when I blow up my existing one I'll just get another 3.9 engine out of ebay for =A31,000-1600-ish.

Problem with spending =A36500 on a car worth a grand is that it makes me feel stupid.

I suppose all those stories of "stump-pulling, gut-wrenching torque" should be left to the magazines.

Quite a bit can be done without spending such silly money - the block can be bored out and top hat liners fitted - use the standard heads - a different cam etc will make all the difference.

So, here's my engine choices:

(1) Rpi 4.6 LPG: 280cu in and 280 bhp. Cost: £6,500 inc VAT

(2) Chevy V8 LPG: 350 cu in and 350 bhp. Cost: I don't know

Can you help me make a decision based on value-for-money? I'd like to hear comments from Chevy choosers as well as hot Rover fans.

Many thanks in advance.

So, here's my engine choices:

(1) Rpi 4.6 LPG: 280cu in and 280 bhp. Cost: £6,500 inc VAT

(2) Chevy V8 LPG: 350 cu in and 350 bhp. Cost: I don't know

Can you help me make a decision based on value-for-money? I'd like to hear comments from Chevy choosers as well as hot Rover fans.

Many thanks in advance.

Pity that Overfinch Clarkson Demo'd ( against a Focus while the Rangie pulled a trailer carrying another focus) was up for sale last week theres another softdash Overfinch on fleabay ( £2.5k atm ) or maybe look at an aftermarket bi- turbo install? Derek