DeTomaso Mailing List: May 99, Message #161

Doug I'll share my experience in Nov of '92 for comparison purposes.  I am
confident that it could have been done for less or you may forgo a few of
the extras.  I was surprised how things added up.

I swapped my tired open chamber heads plus $200 for a tired set of quench
heads.

Heads w/exchange                           $200
Install 8 hardened exhaust seats    $100
Machine heads for screw in studs    $100
Install Bronze valve guides                $125
Match ccs in head  (58cc)                  $80   (Required decking surfaces
045)
Stainless Valves and 3 angle grind    $235
Guide plates                                            $21
single groove keepers                                $4
Rocker Arm Studs                                    $29
Machine spring seats for triple springs    $32
Spring retainers for triples                           $26
PC Valve seals                                            $19
Total                                                        $971**


**Excludes cost of springs which were part of cam kit and value of open
chamber heads.

-----Original Message-----
From: Sedon, Doug (OD/ORS) <sedond@ors.od.nih.gov>
To: Multiple recipients of list <detomaso@realbig.com>
Date: Thursday, April 29, 1999 9:47 AM
Subject: quench heads questions


>hi all, a couple questions for the gurus -
>
>i have the opportunity to get some rebuilt, ported 4b quench heads, set up
for
>roller rockers, but the work wasn't done by the current (machine shop)
owner.
>this means he doesn't know whether the valve seats have been replaced or
not.
>if not, will i have problems w/unleaded gas?
>
>it has iron valve guides.
>
>also, it has two-piece multi-groove trw valves, & double-springs, 120lbs at
the
>seat, 300 lbs open.
>
>he'll sell the pair for $600 as-is, or for $750 with gnu one-piece single
groove
>manley sst valves.
>
>what should i do?  this is for a street engine, it'll have port plates
installed
>in the exh ports, a blue thunder 4b intake, a mild cam upgrade from cam
>research, and a 750 cfm carb.
>
>all replies appreciated - direct if possible, i get the digest only once a
day.
>
>thanks,
>
>doug s
>#2602
>