Secrets Magazine INDEX

Valve Train

Updated  9/22/2022

Our stainless steel valves are the best you can buy.
 Modern stems, 45 degree face, solid one pc cast iron guides.
 They can be used for either intake or exhaust.
BIG & LITTLE
Modern EIGHT (8) Valve Set  -  4 BIG & 4 LITTLE
IN STOCK     

$195.00 complete kit + SHIP
Fit Model A & B engines (1928 -1934)
4 Intake valves 1.73".  Valve seats require machine work.
Consult your engine shop about suitability for your application.
4 Exhaust valves 1.53".  Stock fit with a valve seat grind as usual.
56 pcs: 
8 valves,  8 springs, 8 Retainers, 16 lockers, 8 guides, 8 Spring spacers.

NOTE: 
This is the valve combination that approaches
the best breathing under most touring and racing conditions.
It really wakes up the Banger engine.

Valve Ring Seats - Hardened - Sold Each
Ring Seats require machine work to install.
Consult your engine shop.
1.53 Ring Seat     In stock          $10.00 EACH + SHIP
VALVE RING 1.5
1.730 Ring Seat   In Stock          $12.00 EACH + SHIP
VALVE RING 1.5
Valve Spring Spacer Seats (8 pcs)
$32.80 set + SHIP

IN STOCK
VALVE SPRING SEAT
NEEDED WITH MOST
HIGH LIFT CAM GRINDS.
INCLUDED WITH OUR "B&L" VALVE SET.

Fit all stock Model A and B engines
1928-1934.

If building a Burtz Block 
they will be slightly too large in diameter,
requiring turning diameter down 1/16".

For use with stock valve springs.
CNC precision machined steel, set of 8 pcs.
The spacer will increase valve spring pressure and help avoid
valve float at higher RPMs.  
Installed HOT and tap it home.
 
  DID YOU KNOW?
Stock valve springs check out at 35 lbs at 2.5" installed height.
With spacers installed, spring pressure should be (+-) 52 lbs at 2-5/16" installed height  (thanks to Phred Hollister).
Engines may "run out of steam" at 2800 - 3200 rpm with stock springs
and a high lift camshaft. This is from valve float due to weak springs.
With spacers It'll now pull through 3500 rpm in 2nd gear.
You'll smile and start looking for a longer stretch of road.
Valve Plugs (sold each)
 $20.00 + SHIP

IN STOCK
VALVE PLUG

Fit Model A & B Ford with "F" head OHV conversions.
Special CNC'd aluminum Plugs fit into the (unused) intake valve seat
on OHV "F" head conversions.

Used to support the head gasket and channel OHV oil return to the crankcase.

The large OD is sized for a press fit into a hole machined in for a hardened ring seat. Can be turned down to fit a stock valve seat.
Best to install first and then deck the block.
Plug MUST be flush with or a hair below the deck surface.
The small OD is pre-sized to press into the empty valve guide hole.  

Scalded Dog Speed Parts, 3960 Cain Run Road, Batavia, OH 45103.  
Phone 513-724-0700,  Email:  [email protected]