Actual 998 Chat about rebuilds

[251 ENG]

Toby has a NOS set of D top pistons for sale to suit STD bore

[snoopy64]

Good shout, thanks

[snoopy64]

Ok, bores checked now… quite a bad taper …

[snoopy64]

So, what is the downside to sleeving/fitting liners in a block???

[Thorp]

Simple answer is cost, but no downside on a road engine really.

[snoopy64]

Simple answer is cost, but no downside on a road engine really.

I presume you mean compared with a bore out plus new pistons…?

[OzOAP]

you just need to countersink the 2 screws under the cam pulley

Crank pulley.

I would measure cc in head chamber and measure head deck thickness to the oil drilling. Then you'll have an idea on how to achieve required comp ratio.
D-Top, Flat-top, deck head, deck block......

[snoopy64]

Ok, machining all sorted, now +20.

Can anyone recommend a cam close to std and is it worth fitting a duplex timing setup?

[Polarsilver]

Minispares Evo 1 Cam is good value for the money. just a matter of what type Rockers are used & what do you want from your engine.

[mk1]

Another vote for the evo 1 or alternatively Calvers CST229 is a good bet too.

Personally I put duplex's on all my engines, not sure whether it's really necessary though.