Stage1conversion

Stage 1
Cylinder Head
Conversion

Basic Stage 1 Conversion
Labor charges
Thermal cleaning                             45.00
Magnaflux                                           29.00
Replace guides                              144.00
Stage 1 PLUS conversion.          240.00
*open for oversize valves
*un-shroud combustion chambers

3-angle performance valve job     150.00
resurface heads                                63.00
                                  Total labor 671.00
Parts
cast spiral groove valve guides     28.80
AM&P 1001-1002 valves               199.95
2.125 intake 1.750 exhaust
stainless steel - swirl polished
chrome stem - one piece
*Viton valve stem seals                 14.85
Stage 1 plus valve springs            75.00
                                Total parts 318.60
          Total Parts and Labor   989.60

Plus Flow Conversion
Labor charges
Thermal cleaning                           45.00
Magnaflux                                         29.00
Replace guides & wet hone       185.00
Stage 1 PLUS conversion.         240.00
*open for oversize valves
*unshroud combustion chambers
3-angle performance valve job 150.00
resurface heads                             63.00
                                    Total labor 712.00
Parts
Phosphorus/Bronze guides         72.00
AM&P PLUS FLOW valves         279.95
2.16 intake - 1.71 exhaust
Extreme duty - stainless steel - plus flow
11/32 stem - swirl polished - chrome stem

*Viton valve stem seals                14.85
Stage 1 plus valve springs           75.00
                               Total parts 441.80
       Total Parts and Labor   1153.60

Opening for oversize valve Before un-shrouding un-shrouding process after un-shrouding

                                                                Option list

PLUS FLOW 2.160 intake - 1.71 exhaust valves --------------------------------------------141.40
includes 7 degree locks, chrome moly retainers and cut for seals
PLUS FLOW valve springs (for use only with plus flow valves) ----------------------------193.00
includes cut spring pads and hardened shims and set installed height
Phosphorus bronze guides installed and wet honed -------------------------------------------84.20
30,000 series unleaded exhaust valve seats (installed) ------------------------------------- 200.00
T/A no wiggle dual springs,retainers & locks -----------------------------------------—-—-- 238.00
includes cut for seals, cut for dual springs and hard shims (for 3/8 valves only)
Competition Multi-angle valve job (must do with port work)---------------------------------- 70.00
Plug four exhaust crossover holes ------------------------------------------------------—------- 40.00
Plug eight A.I.R. holes in late heads -------------------------------------------------------------- 40.00
Back-cut intake valves (most economical H.P. gain, must do with port work)-------—---- 24.00
Street-Strip Port, flow test      ( int. flow min. 250 cfm @ .450 lift) -----------—----------- 650.00
Competition port, polish, flow test and balance —————————-----—-——- from 1000.00
         minimum 275 cfm intake   190 exhaust
Core charge ------------------------------------------------------------------------------100.00 and up
Milling heads to reduce cc's requires cutting the intake side of the head so the intake manifold
will align. Including checking cc's it is $20.00 per cc to cut both heads and intake side

PLUS FLOW PREMIUM CONVERSION includes first four options ———————-$1459.95
with competition valve job and street/strip port and flow ————————-——- $2109.95

All port work verified with on our computerized SUPER-FLOW SF 600 flow bench with the
Brezinski slider system which correctly aligns head over bore for more exacting measurements

Although it is costlier, we can now get 290 + CFM on the intake and almost 200 CFM on the exhaust.

Don’t be fooled by some wild claims, we have tested most of the products ported by other
so-called Buick experts and their flow numbers just do not come up to what they claim.


      ~~~~~~~~~~ Prices as of May 1, 2005 ~~~~~~~~~~

All of our ported heads are verified with our
computerized Super Flow SF-600 flow bench.
All runners are checked and a complete flow
sheet comes with all heads

What is a Stage 1 Plus Cylinder Head Conversion?

1 - Thorough cleaning with a thermal cleaning system and shot blasting to a like new appearance
2 - Magnafluxing to insure a sound product to work with
3 - Chasing the threads in all bolt holes
4 - Installation of new guides and properly sized
5 - Pocket porting to Stage 1 valve size with improved angles
6 - Enshrouding of combustion chambers
7 - Valve job ( concentric to less than .0005 ) done with state of the art equipment by Sunnen
8 - New Automotive Machine & Performance stainless steel, swirl polished chrome stem valves
9 - New springs retainers and locks from T/A Performance, AM&P, Lazer, Isky or Comp Cam
10 - New brass freeze plugs installed
11 - Heads are then thoroughly washed and professionally assembled
checking the following:
A - valve stem to guide clearance
B - valve and seat concentricity
C - stem height
D - retainer to guide and retainer to seal clearance
E - Valve spring installed height ( shimmed as necessary )
F - Valve spring open and closed pressure ( as per cam specifications )
G - Lubricated with high pressure lubricant

Heads are then placed in plastic bags to prevent contamination

These procedures are done on each conversion from the basic to competition

A complete blueprint is made on each conversion

Flow sheets are provided with all ported heads not just one cylinder all cylinders

So as you can see Automotive Machine and Performance has
definitely put the PLUS in a Stage 1 conversion

Heads awaiting
conversions and porting