njc.corp

i have a pair of brand new allpro heads here-

was given to me as a present from a freind-

the problem i have is i dont know or have any info on them-

all that came with the heads was some 8ml chi bronze guides-

the only part number on the head on the exhaust side where the head bolts goes into---- is 9 205

it is a catherdal head-

just need to know specs of cc's -runner length-etc etc

going on a 346 ls1 m6+200hp n20?

need to know wether if its a waste of money/time or just get some other heads-

Thanks

Richard@WCCH

iTrader: (3)

You have a very nice friend.

The cathedral All Pro heads should have a 240cc intake runner. With a 2.08" intake valve they should flow over 330cfm @.650" lift. They're a bit large for street/track use on an LS1 block. An LS2 or stroker engine would be the best use of the All Pros.

Good luck,

Richard

SUCK MY SS

iTrader: (14)

dont you run into valve to cylinder wall contact with a 2.08 valve on a stock ls1 bore?
or is it the 2.10 valve that has the problem?

im sure the 2.08 valve will yield unwanted shrouding on the smaller ls1 bore...
id keep those heads for another build, and look into something with a 2.02 valve on the intake...

njc.corp

Thanks Richard-always treated me good-

my 427 is getting their-just getting that intake we talked about-i will do both the test between the gmpp l92 and that cast one and report back to u-

Thanks

Richard@WCCH

iTrader: (3)

Very good Nick. I'll be standing by and wait for your results.

Good luck mate.

Richard

njc.corp

^^^ no stress-anytime-

ps we are going to try the allpro head and some camshafts-(maybe u want to pm me some camshafts specs and i will get them off u )

u might be right on it being too big-but we need some data-

I will pm u the details-

Thanks