I picked up (or reduced hehe) 4/10ths with 1.92 RT heads, NON ported-- and went from 96.5 mph to 99.5-100 mph (depending on the temps)... That's with stock gears (and no change in converter-- did the converter afterwards, and really didn't make a difference NA)
Most guys go with 2.02s-- and you're right, there's low end loss going that route.
What did all the head work run you pricewise?? That's another consideration-- the fact that you're were fine, and not cracked is amazing-- It is a common thing -- about as common as a blow belly pan gasket, or the leaking stock t-stat housing.
There is a mid 13s street driven, 318 auto-- here in So Cal-- has the RT 1.97s valves-- a mean as cam-- Truck looks plain jane too.
Little bastard got me on the street-- but was nice enough to come back when he saw me later at a gas station. I have his phone number somewhere.
Sam
>
> From: "RayB" <bpracing@worldnet.att.net>
> Date: 2003/08/21 Thu AM 03:12:57 EDT
> To: <dakota-truck@dakota-truck.net>
> Subject: RE: DML: Burnt Valve
>
>
>
> Had stock heads massaged this spring. No cracks, bowls blended, SS valves,
> 1.97 intake valve, 5 angle valve job, .020 cut on heads, intake ports
> matched to manifold, stock head gasket == 3 tenths and 3 mph with no loss in
> 60' times. Still running stock heat range plugs, stock TB and 92 octane
> (and a waaay too tight torque converter). By comparison, a friend
> installed the R/T heads (conservatively massaged by Indy cylinder heads) on
> his 2000 R/T, along with a hotter cam (don't know the specs) and picked up
> only 3 tenths as well.
>
> The moral, in my opinion, is the ports in the R/T heads are large enough
> that there will be some loss in low end performance without steep gears and
> a high stall converter. Definitely not right for a street driven 318, in
> my humble opinion. :-) Find me a quicker and faster, street driven,
> automatic 318 and I might change my mind. ;-)
>
> RayB
> http://www.dragtruk.com/ENTRIES/20KM1FD2KWBP.html
>
>
> > -----Original Message-----
> > If the heads are stock-- expect them to be cracked as well-- even
> > before this condition--
> >
> > You still running a 318???
> >
> > If so-- RT 1.92 heads--
> >
> > If not-- RT 1.92 heads-- I run them on my RT..
> >
> > Taste Great, Less Filling.
> >
> > :)
> >
> > Sam
>
>
>
This archive was generated by hypermail 2b29 : Fri Feb 06 2004 - 11:46:48 EST