Contact Us: Chris Whitney - (818) 632-2001 | Robert Pond - (909) 376-2530

Robert Pond Motorsports

FAQ

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What does a Robert Pond Motorsports (RPM) 

427 Ford FE Type aluminum engine block weigh? 

135 lbs. 


What’s the weight of the original
Ford 427 FE iron block?

195 lbs.


How about the RPM FE Type iron block?

Those weigh 285 lbs.


What strength does the 427 engine
block have?

The 427 Ford FE type Pond engine block in aluminum
is much stronger than the original cast iron Ford block. 
The Pond engine block was internally redesigned
with siamese cylinders, the deck is .75 inch thick,
and the bottom end is extremely rigid, with redesigned
billit steel main caps and special ARP bolts and studs.

Aluminum is heat treated to T356. The cast iron
Pond engine block brinnells at over 225


Is this as strong as the original
427 Ford engine block? 

Yes – substantially more. People with the aluminum
Pond engine block are running over 1300 HP without
issues. These are 100% stronger than the original
cast iron.


What about the sleeves on the
427 Pond engine block?

The aluminum Pond engine block has spun ductile iron
sleeves that Brinnell at 280.


What about oil passages on the 427 block?

Oil passages are similar to a stock side oiler 427s.
They’ve been modified to be a priority oiling system
where the crankshaft main bearings are fed first, and the
lifter valley area is last.This is important because on the
original Ford 427 engine block, it was the other way
around. And you always oil critical things first! 


What freeze plugs are used?

427 Pond engine blocks have aluminum screw-in
freeze plugs and O-ringed grease plugs.


Do the 427 engine blocks you supply use the
same designations as the original Ford block?

Yes, they’re a drop-in replacement.  They have been
completely re-designed, and are technically superior,
but have the look of an original Ford block.


How big can you build your RPM FE type
engine block?

The aluminum Pond engine block can have a maximum
bore of 4.310 with a 4.375 crankshaft. This would give you
over 500 cubic inches.

The cast iron block would give you a maximum bore of 4.40.


What equipment do you use to
manufacture these blocks?

427 Ford Pond engine blocks are cast in a tightly
controlled foundry that, in addition to high-performance
engine blocks, specializes in low-porosity parts for mining
operations and steel mills.  There is no tolerance for error in
any of these applications.  Tooling was specifically
engineered by us for the 427, and we have advanced

CNC machining cells to make sure every feature is
precisely as it should be for maximum power and
dependability.



Pond Stage II CNC SuperFlow 1020 28" Water 2x6 Pipe 2.25/1.75 Valves

Lift                                                    Intake CFM                                                     Exhaust  CFM
.300                                                         230                                                                     162
.400                                                         285                                                                     195
.500                                                         316                                                                     220
.600                                                         341                                                                     240
.700                                                         352                                                                     269
.800                                                         366                                                                     277

Pond Stage III CNC SuperFlow 1020 28" Water 2x6 Pipe 2.25/1.75 Valves

Lift                                                    Intake CFM                                                     Exhaust  CFM
.300                                                        228                                                                     170
.400                                                        265                                                                     207
.500                                                        303                                                                     228
.600                                                        332                                                                     244
.700                                                        355                                                                     255
.800                                                        368                                                                     263

.900                                                         375                                                                     268
 

1.00                                                         381                                                                     278

Pond Cammer CNC SuperFlow 1020 28" Water 2x6 Pipe 2.35/1.9 Valves

Lift                                                   Intake  CFM                                                     Exhaust CFM
.300                                                        256                                                                     180
.400                                                        328                                                                     208
.500                                                        369                                                                     231
.600                                                        395                                                                     247
.700                                                        402                                                                     269