Thread: 3.9 to 5.0 litre

Originally Posted by steve_35

Im only new to the rover V8 but i have had several 253's 308's and a 5.0 or 304

In my opinion the Rover V8 is a heaps better motor lighter sounds better as far as power goes my stock 3.9 efi runs smoother and revs easier than any of the holdens i have had and is just as powerful

Originally Posted by BigJon

Dont you like the Rover V8

I love my 3.9 Rover V8, but it is gutless and thirsty compared to my last EFI 5 litre.

I am intending to rebuild my 3.5 with a stroker crank and I am keen to fit Delco injection as well.

i agree, i like the 3.5 in my disco, but would swap it in a heart beat for something with more torque and efficiency

Its obvious hat not many have slightest clue about Hoolden V8s or even thier woeful Rover V8/s ,( a lessom in Basic head design/layout is required to understand way Rover V8 are such absolute crap) I can get 500 HP NA out of of hoden V8 easily aand still be very streetable/ offroadable (Cams at 233@50) , Sure they are strokers 355/383/396 but still way cheaper to build and 10 times more reliable than Rover V8's at at a ****weak 300 FWHP . A HoldenV8 is made in Australia , no Chev crap !!

the thing stopping me dropping in a 304 EFI or similar is the fact i would like to keep it manual, and the LT77 i have in the disco is not up to the task

500hp from an old 308 id like to see that i was only ever able to squeeze around 350hp out of them and that cost over $6000 10-15 years ago

Steve 35 , way back in 1974 , holden 308;s were making 400fwhp out of a 308 !!!
Dont know whom built your enginss . but they definately have problems .PS have Holden 308'd making 700HP Naturally aspirated . (You must realise that they have stroker kits fitted up to 400CI) Do ypu know that a standard VN head can flow over 450 HP ? My Head Porter takes them to 650HP (Potential)