HEADS
Here are some quotation examples that
we've already done, just to give you
an idea of cost. For sure, depending
on what you want to do with your car,
it's preferable for you to contact us
and explain your needs and budget. With
that, we will be in a better position
to give you the best price. If you want
to see what kind of heads we have for
sale, go on the PARTS
page.
Reporting Job (Aluminum Head) Int-Exh
runner, S-B $300.00, B-B $375.00, add
$75.00 for combustion chamber
Flow reading TEST & Data computer sheet
.050 to .900 lift, Add $125.00
Flow reading TEST fast check at 2 point
lift, Add $50.00
AMC Jeep
Cyl Heads V8 availability
Super
Street Heads
- Close or open chambers are the same.
You can use open chamber shapes in racing.
Pre 1973 screw in stud.
- Hot tanked, glass bead shut.
- Lightened casting available and de-stress,
.500 brass guide, P-C seal machined,
cut down guide.
- Corrected match seat spring pads and
height pressure springs.
- Head refaced or trick angle and chamfered
hole.
- Retainer, lock, valve job, spring
height matched to your cam specifications.
- Light weight 10° retainer and lock.
- 16 chrome moly ARP rocker arm stud
flex less.
- New freeze plug.
- AMC correct 1969 paint job and red
rustolium primer.
- Light weight 2.08 11/32 long intake
valves.
- Light weight 1.62 11/32 long exhaust
valves.
- ROL high temps gasket set.
- Exclusive cutting mill valve seats
multiple angle, de-shrouded combustion
chamber, give 20% more flow.
- Econo reporting job plus raised intake
port, minimum 170 CFM test at 28" of
pressure.
- Re-treaded all hole bolt.
- Springs match and correct the pressure
at intake and exhaust.
560HP capacity heads ready bolt on :
$1,461.60
New replacement parts freight fees : $72.00
Options:
- Ultra sonic cleaner for best cooling,
add $50.00
- Titanium retainers, add $45.00
- Light race retainer moly-chrome, $39.95
- Roller springs, $240.00
- 7/16 studs, $16.00
- Double springs, $40.00
- Acid deep, $60.00
- Lightened casting available and de-stress,
$50.00
- Light weight 2.08 11/32 long intake
valves, $32.00
1968-69
AMC Cylinder Heads Cast #3188558
Ported intake and exhaust, not excessive
porting but uniform in each port. Full
polish combustion chamber with blended
spot face and valve de-shrouded.
Heads have been milled at .015. Heads
are not rusty but as stated have been
welded for crack in usual area.
Narrow valve seats - 3 angles in exhaust.
Exhaust valve-stainless steel Manley with
11/32 stem & 1.685 intake valve-stainless
steel Manley with 11/32 stem, 2.000 diameter
head (seat at outer edge of valve) maybe
was 2.020 but cut for better flow.
Steel insert valve guides in. and ex.
top of guide ½" for seals. Check stem
to guide clearance .006 to .012 max play
at ½ valve drop (most all at lower .006
to .007 with dry stem).
Exhaust port height 1.780 width 1.180
Intake port height 2.260 width 1.125
Measured combustion chamber cc are 62.1
cc (full open chamber)
Head set-up for much .600 lift
Price $500.00 including stainless
steel valves
For valve spring, retainers and locks
add $90.00
1970 Performance
Heads
We can supply some 291-C heads, stainless
steel valves, reported int. - exh. side
combustion chamber. Flow 260 CFM at 28
inches, ready bolt-on with double spring
cam match, adjustable ARP stud, retainer,
lock, pc seals for only $1,000.00.
390 Engine
AMX
Cylinder Head 291-C bare set
Heads look untouched, not modified
16 valve spring pad seat machined for
double spring and pressure match
16 guides dropped of .200
16 brass guides steel core plus oil filet
and installation job
8 intake s-s valves premium 2.055, 11/32,
+.100
8 exhaust s-s valves premium 1.65, 11/32,
+.100
16 racing seat configuration job by cutter
Check stud to rocker arms
.060 intake seat width / .075 exhaust
width
Deck side shaving of .007 to .015
No primer, no paint
16 p-c seal and installation
16 shim 1.500, .765 if needed
Rocker machined if needed
32 locks 11/32 chrome molly
10 items parts and job $622.00
Head casting $200.00
Intake and exhaust pocket bowl blend porting
(option) $80.00
REPORTING JOB
SWIRL STREET PERFORMANCE
All performance Cylinder Head reporting
jobs, used for street, are made carefully
to keep or to produce a better SWIRL movement
in the combustion chamber.
Most street profile camshafts are designed
for a lower lift at valve. This SWIRL
is tested under .400 lift. It's where
we work, to help the customer, to keep
the best performance under 3000 RPM engine
range and keep the best GAS consumption
and Torque.
All reporting head port intake exhaust
is made according to the application or
the usage of the customer.
The budget plays a big roll in this
job.
The street engine RPM cruise 2200, 3500
(6500 maximum RPM), the low lift reading
flow is very important by example : flow
test at .050, .100, .150, .200, .300 lift
at valve. For a flat tappet cam, the valve
job shape is very important because it
have a lot of crankshaft degrees rotation
for the low lift valve profile.
We use a cutter tool valve seat multiple
angle 70º, 60º, 45º, 30º 15º to 0º. A
deshrouded job is made with this milling
machine. Price is $175.00, 15% more flow
automatically.
Port match, port blend, edge cut V8
S-B w/die grinder hand made, price $175.00
for 10% more flow +/- 3
FLOW-COMPARAISON
2V, 360 Dodge - 2.02, Very Good
Valve Job
|
| .200
lift |
117cfm |
| .300
lift |
169
cfm |
| .400
lift |
202
cfm |
Aluminum AMC Large Port HLR
Poor Valve Job 2.06
|
| .100
lift |
058
cfm |
| .200
lift |
121.
cfm |
| .300
lift |
165
cfm |
| .400
lift |
202
cfm |
| .500
lift |
235
cfm |
| .600
lift |
261
cfm |
| .700
lift |
280
cfm |
| .800
lift |
Dead |
SB Chevy, Botie Very Good Valve
Job 2.02
|
| .100
lift |
067
cfm |
| .200
lift |
125
cfm |
| .300
lift |
175
cfm |
| .400
lift |
204
cfm |
| .500
lift |
206
cfm |
| Dead |
|
SB Chevy 2.02, Very Good Valve
Job, Acid Deep & Trick
|
| Test
at 28" of pressure water |
| .100
lift |
071
cfm |
| .200
lift |
132
cfm |
| .300
lift |
185
cfm |
| .400
lift |
206
cfm |
| .500
lift |
215
cfm |
| .550
lift |
218
cfm average |
| .600
lift |
220
cfm average |
AMC Racing Job, Steel Cast
|
| .400
lift |
256
to 258.6 cfm |
| .500
lift |
---------- |
| .600
lift |
270
to 289 cfm |
| .700
lift |
270.8
to 295 cfm |
| .750
cfm |
280.3
to 287.5 cfm |
| .800
lift |
282.8
to 300.1 cfm |
AMC Exhaust Port Pro Street
Job, Low Shift Job
|
| .400
lift |
185
cfm |
| .500
lift |
196.6
cfm |
| .600
lift |
Dead |
| .700
lift |
Dead |
AMC Steel Head Super Street
High Velocity 2.08 Valve Diameter
|
| Flow
test at 28 of water on Super
Flow 600 |
| .100
lift |
61.7
cfm |
| .200
lift |
132
cfm |
| .300
lift |
186
cfm |
| .400
lift |
234.5
cfm |
| .500
lift |
269
cfm |
| .600
lift |
276
cfm |
| .700
lift |
279.2
cfm |
DETERMINING THE COMPRESSION RATIO
The compression ratio is based on the
formula:
P.D. + C.V. = C.R.
C.V.
P.D. = Piston displace: (.7854 X bore
diameter) X 2 X stroke = total cube inch
C.V. = Cylinder volume: (cylinder volume
inch) ÷ .0612 = total c.c. // (cylinder
volume c.c.) X .0612 = total inch
TECHTIPS
- Exhaust
Valve
- Reshaping an exhaust valve for a 258.
PICTURES
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