Rotating Parts



The Flash Says: "The meat and potatoes of building a Caddy motor are the rods and pistons you put in 'em . . . Everything else is gravy. There's no excuse to build a marginal motor just to see if it'll work. Put the good stuff in your motor right from the get-go!"

Replacement and Street Performance Pistons

Price includes pins, except custom forgings. Please Check year/ cylinder head / stroke by the casting number before ordering. For coated skirts, add $80. Other friction, oil shedding, and heat barrier coatings available on request.

KB Pistons

Silvolite Cast Replacement Pistons With pins
available in .030, .040, and .060 over bore sizes exc. as noted
472: 71-73 / 76cc heads 8.5:1 CR $575
500: 71-73 / 76cc heads 8.5:1 CR $495 .020 only
500: 74-76 / 120cc heads 8.25:1 CR $495
425: 77-79 8.2:1 CR $300

RC Cast Replacement Pistons With pins $475
available in std, .020, .030, .040, and .060 over bore sizes.
472: 68-69 / 76cc heads 10.25:1 CR
472: 70 / 76cc heads 10:1 CR
472: 71-73 / 76cc heads 8.5:1 CR
472: 74 / 120cc heads 8.2:1 CR
500: 71-73 / 76cc heads 8.5:1 CR
500: 74-76 / 120cc heads 8.2:1 CR

Keith Black Pistons Hypereutectic Alloy w/ heavy duty Wrist Pins $550
available in .030, .040, and .060 over bore sizes.
Grooved for SpiroLocks (included) for use with floating pins. Made in USA

472 76 cc heads 9.8:1 CR
500 76 cc heads 10:1 CR
500 120cc heads 9.2:1 CR (13:1 w/ 76cc heads)

Cad Company Designed Forged Pistons

Cad Company exclusive pistons, designed by us, built to our specifications by top-notch manufacturers
All of the following, except as noted, are designed to clear the biggest valves in all OE and aftermarket head castings,
with the biggest flat tappet cams available (as well as most roller cams).
Designed by the leader in Cadillac performance for relatively quiet operation (for forged pistons) and reliable performance in your Cadillac engine.

Probe 10:1 Dished Forged Pistons, for 500 CID with valve reliefs, 10:1 CR w/ 76cc heads
Obsolete. Single replacement pistons are still available.

Probe 10:1 Domed Forged Pistons, for 500 CID with valve reliefs, With pins $625
Gives 10:1 CR with 120cc ('74-'76) heads, 14:1 CR with 76cc ('68-'73) heads.
Available in .040”, .060”, .120” over bore sizes.
Sinlge replacement pistons available in .030”, .040”, .060”, .080”, .100", and .120" over bore sizes for $175 each.
Grooved for SpiroLocks (included) for use with floating pins. Made in USA

Venolia 10:1 Dished Forged Pistons, for 500 CID with valve reliefs, With pins $695
Gives 10:1 CR with 76cc ('68-'73) heads.
Available in .030, .040”, .060”, .080” over bore sizes.
Grooved for SpiroLocks (included) for use with floating pins. Made in USA

Venoila 10:1 Domed Forged Pistons, for 500 CID with valve reliefs, With pins $695
Gives 10:1 CR with 120cc ('74-'76) heads, 14:1 CR with 76cc ('68-'73) heads.
Available in .030, .040”, .060”, .080” over bore sizes.
Sinlge replacement pistons available in .030”, .040”, .060”, .080”, .100", and .120" over bore sizes.
Grooved for SpiroLocks (included) for use with floating pins. Made in USA

Venolia 8.25:1 Forged Pistons, for 368 $715
Specced as stock replacement pistons (no valve releifs) for the '80-'85 Cadillac 368 CID (6.0L) engines
Available in any bore size. Piston pins not included (factory pins can be re-used). Made in USA
Made to order - Allow 3-6 weeks for delivery.

Venolia Custom Forged Pistons $825 and up, plus pins
Made to order - any bore size, any compression ratio, designed per applciation.
Grooved for SpiroLocks (included) for use with floating pins. Made in USA
Allow 3-6 weeks for delivery

Piston Pins, heavy duty, standard sizes $75 and up per set of 8

Lightweight, gas porting, narrow rings, lightweight and severe duty pins, and other special applications available at additional cost.

Rod/ Piston Combos

Rods and Pistons

I-Beam Rods and Keith Black Pistons with full floating pins $865
I-Beam Rods and Domed Probe Forged Pistons with full floating pins $940
H-Beam Rods and Domed Probe Forged Pistons with full floating pins $1085
I-Beam Rods and Venolia Forged Pistons with full floating pins $1010
H-Beam Rods and Venolia Forged Pistons with full floating pins $1155


Connecting Rods

ARP™ 8740 Chromoly Rod Bolts with nuts. For OE Cast Rods $95
Cast Replacement Rods 84M ARMA steel w/ ARP 8740 Chromoly bolts $415
Reconditioned OE rods, shot-peened, magnafluxed, blueprinted, bearing bores resized.
Forged I-Beam Rods bushed for floating pins> $450
Standard Cadillac length. Equipped with bolt-thru-cap style 3/8" ARP Chromoly Bolts. Bushed for floating pins (requires pistons cut for SpiroLocks, such as KB or Forged pistons). Recommended for most N/A street performance engine builds.
H-Beam Rods bushed for floating pins> $595
Standard Cadillac length. Equipped with bolt-thru-cap style 7/16" ARP Chromoly Bolts. Bushed for floating pins (requires pistons cut for SpiroLocks, such as KB or Forged pistons). Recommended for most N/A street performance engine builds.
High-end Steel H-beam and Aluminum Rods available for racing applications $Call

Billet Steel Cranks

Billet 4340 Chromoly cranks are available in a variety of strokes and rod pin sizes. Prices start at $6100. Made in USA.
We can design a crank to suit your needs, whatever they may be. If you would like one made to your specs / design, please send a drawing via fax or e-mail
Note: Made to order. Allow 3-6 months for delivery.

Stroker Kits

Basic Stroker Kit $3400
Specify heads, desired bore size, and compression.
Includes stroked OE crankshaft, aftermarket forged rods w/ ARP rod bolts, custom Venolia forged pistons, Moly rings, and rod bearings.
Rotating Assembly balanced. Makes 526-546 CID depending on bore size and final stroke variations(.120” over is the max recommended for street cars).
Beware of imitators - there are many ways to stroke a stock crank, but not all of them are bulletproof.
Our stroker cranks have been torture tested at well over 2000 HP on the 5-mile and 7-mile long courses at Bonneville without failure.

H-Beam Rods add $200
Note: Pistons are Made to Order. Allow 4-8 weeks for delivery.

Budget 4.600" Stroker Kit w/ Billet 4340 Crank $5600
Budget 4.750" Stroker Kit w/ Billet 4340 Crank $5800
These are shelf stroker kits - via a special quantity purchase, Cad Company is able to bring you these long-stroke / big-inch stroker kits,
with no wait time, and a much more reasonable cost than other big-inch Cadillac billet stroker kits.
These special kits include a billet 4340 ChroMoly crank built to our specs, aftermarket rods with ARP fasteners, Venolia pistons, Moly rings,
and premium rod bearings. At the time of this writing, available compression ratios have yet to be determined but these kits are expected
to be in stock as early July 2016. Check our 'New and Coming Products' page for updates and pre-order information.

Custom Billet Stroker Kit w/ Billet 4340 Crank $7900 and up
Specify heads, desired bore size, and compression.
Includes custom billet 4340 ChroMoly crankshaft, aftermarket forged rods w/ ARP rod bolts, custom Venolia forged pistons, Moly rings, and rod bearings.
Rotating Assembly balanced. CID varies depending on bore size and stroke(.120” over is the max recommended for street cars).
Note: Pistons and crankshaft are Made to Order. Allow 4-8 months for delivery.

Big Bore Head Gaskets

CadCo White Head Gaskets $40 ea For combos up to .080” over bore. Formerly Corteco / ROL gaskets.
Cad Company ProCad (black) Head Gaskets $60 ea For combos up to .145” over bore. Made in USA.
Note: These gaskets are made with an HD core for better detonation resistance than standard composite gaskets.
They are also endowed with a special coating to improve sealing of collant in difficult to seal applications, and resist scuffing with aluminum heads.

Standard SCE Copper Head Gaskets Standard Copper Head Gaskets .040” - $195/pr
Also available in .020" thick. Made in USA



SCE Titan Copper Head Gaskets SCE Titan Copper Head Gaskets .043” $265/pr For 472/500 and engines.
With seals around water passages, integrated O-ring (no grooves required).
4.380, 4.440, or 4.520 bore sizes available. Made in USA


Crank Hubs, Bolts, and Repair Sleeves

Note: Most '73-older (3-groove) factory pulleys are back-cut to provide clearance for the factory vibration dampener. Some '73-older and most '74-newer (2-groove) factory pulleys are not. All factory hubs have the same spacing.

Crank Hub and Dampers

Crank Hub Repair Sleeve PB11113 $45
Repair sleeve for crank hubs with a groove worn where the front crank seal rides.
Crank Hub Bolt Kit PB11122 $15
Crank hub bolt and washer kit w/ heavy duty 3/8" thick machined steel washer. Pulleys can be removed and installed without removing bolt and washer. Bolt and washer kit can be used to install press-fit crank hub or dampener assemblies.
Crank Hub PB11201 Billet Steel, Standard Spacing $190
New billet steel crank hub with correct press-fit, standard flange spacing, and standard 4-bolt pulley pattern.
Crank Hub PB11202 Billet Steel, Offset $190
New billet steel crank hub with correct press-fit, offset flange spacing for correct pulley alignment using non-dampener pulleys with aftermarket performance dampeners such as the PB12401, and standard 4-bolt pulley pattern.
Crank Hub Spacer PB11210 Offset Hub $40
Aluminum spacer for use with PB11202 Billet Crank Hub, to acheive correct pulley alignment without a dampener

Harmonic Dampeners

Steel Elastomer Street Performance Damper PB12305 (not certified) $260
One-Piece billet hub & dampener assembly for street performance applications. Power-bond dampening rubber technology with standard zero balance and standard pulley mounting surface spacing. High tech, durable, etched semi-gloss finish.
Steel Elastomer Race Damper PB12306 (SFI Certified) $390
One-Piece billet hub & dampener assembly, SFI certified for race applications with Power-Forged hub and billet steel dampening rings. Power-Bond dampening rubber technology with standard zero balance and standard pulley mounting surface spacing. High tech, durable, etched semi-gloss finish.
BHJ Elastomer Damper PB12401 For high-end race applciations (SFI Certified) $575
Billet steel construction, elastomer (rubber insert) type damper. This is the primo performance damper.
Can be installed on stock crank hubs (hub not included). Clears most pulleys, but used with stock hub, will space crank pulley out slightly. If you will be running standard pulleys, we recommend either back cutting the crank pulley (billet aluminum and cast iron pulleys only) or using the offset aftermarket steel crank hub PB11202(sold separately) or ordering the combo kit PB12402 (dampener and hub) to acheive correct pulley spacing.
Made in USA

Elastomer Damper

Miscellaneous

Crank Scrapers $55
Mounts between oil pan and block. close tolerance to rotating parts to wipe off excess oil.
May require minor clearancing depending on rotating part selection. Made in USA

Main Girdles $165
Steel halo-style main girdle to connect the main caps and add strength and rigidity.
Recommended for high RPM (over 6000 RPM), stroker, and power adder applications. Made in USA
For all-out race applications, call for info on our billet aluminum or chromoly block girdles.

Main Stud Kit ARP 4130 Chromoly with nuts and washers $135
Long Main Stud Kit ARP 4130 Chromoly with nuts and washers $150
for use with halo-style main girdle

Cad Company
The originators of performance parts for the Cad 472"/500"/425" !