diffrences in silver top and black top,why do people seem to turbo the silver top, thanks

 

cheap and readily available you can pick a silver top up ready for a strip down for Ł100

 

is that it just because of cost

 

are they basicly the same engine

 

main caps are stronger on the silver top block

 

Need a extra pulley added to the black top so the water pump turns the correct way


Brian

 

MD Costhank for the good imfo


Briancheers,looks like ill be going for the silver top then

 

Just been a VERY good feature in either PF of FF, on this subject, worth a read.
tabetha

 

tabetha

PF Mag, Its the "Budget Zetec Turbo Guide"



I have a Silver top to turbo

 

So after spending all that money on the cvh are you coming over to the darkside?

Both the black top and the silver top have different advantages/disadvantages so it is best to use a mix of parts from both.

 

yes,i want to try out the zetec,im building it for another project,thanks for your replys

 

are the valves the same in both engines?? does anyone know

 

the blacktop comes with better conrods which are allot lighter than the silver tops in turn revs better...so im told

im just about to turbo an ST170 engine as the head is a lot better than the silver top. plus i got the engine cheep

& fancy seing what it can do

 

it wouldnt matter about the rods,ill be going for steel items and forge pistons,thanks

 

so am i

 

do you know if the valves are the same in the black top to the silver top?

 

I dont think so, I think there is a difference in the number of rings in the valve stems for the collets. IIRC there are 3 grooves in the earlier (silvertop?) valves and only one in the later ones.

However that could all be bollox so I'd wait and see if anyone tells me I'm wrong

Spud

 

spudmurphy silvertop valves do have 3 grooves for the collets

 

and black tops dont??????

 

I did have a silver top that i was going to to use to build my zetec turbo but then a black top come up cheap so bought that instead


Brian

 

just backing up what he said about the silver top rods

with regards to the black top rods...i dont know... thats why i didnt say if they do or not

 

thanks anyway

 

no worries