Engine Combinations

These are just a few of our combos
Check out our Engine Masters Challenge results from 03'

We can do these engine using any of the rotating assembly combinations from our assembly list

389-416 cu. in.
400-450+ HP
Daily driver combos include. 350-389-400 block, 
89+ Octane & hyd. cam. Cast Iron D-port Heads.

Butler Performance Builds More Pontiac Horsepower with More Combinations Than Anyone in the World!!!

447-467 cu. in.
475-550+ HP 
560 ft lbs. torque.
Street performance combos include 389-400-428-455 block, 91+ octane, hyd. Cam, cast iron D-port or Edelbrock Alum. Heads
461-474 cu. in.
625 ft lbs. Torque
Pump gas, street-strip combos include 400-428-455 block, 92+ octane, hyd. roller or solid mechanical cam, AS SEEN IN The GTO Tiger! 10.80's @ 3700+lbs., street legal. We are also a finalist in the (PHR) Engine Master Challenge with one of these combos! 659 hp, 625 ft lbs. torque on 92 octane
Call, fax or e-mail for a FREE DETAILED ESTIMATE
487-511 cu. in.
710 ft lbs. torque.
Bracket race combos(or add nitrous or blower for heads-up racing) include 400-428-455 or after market block, 114+ octane, CNC wideport Edelbrock heads, Victor intake, solid roller cam. 
Click HERE to view one of these combo's in a 
customer's car

461-474 cu. in.
650+ ft lbs. torque.
Limited street or bracket race combos include 400-428-455 block, requires 110+ octane, solid roller cam(or super aggressive solid mech.) Race prepped cast iron heads or Edelbrock Alum. Heads, solid flat tappet, hyd. roller or solid roller cam.
Click HERE to view one of these combo's in a customer's car.
We Make The Most Pontiac Horsepower PERIOD!
565-572 cu. in.
(after market block)
740 ft lbs. torque
This combo includes CNC wideport Edelbrock Heads and sheet metal intake, 98 octane 10.9:1 C.R STREETABLE and durable combo - just ask Mark Scordato. He has one of these 565's in his show quality 1968 GTO convertible 5 speed street car. And yes he does drive this car regularly on the street!!! WITH 892 HP. 745 FT LBS. TORQUE.
Click HERE to view one of these combo's in a 
customer's car
490-601 cu. in
900-960+ HP
Race Engines
Gas or Alcohol
116+ octane, std. and tall deck deck versions, 2X4 sheet metal intake. CNC wideport Edelbrock heads, bracket race reliability with heads-up power!

Picture shown is - 499 cu. in. on gas - no nitrous - 967 HP

Pure Pontiac
Nitrous, Supercharged, Turbo engines for
streetable combosto 6 second race engines. Carb and fuel injection combos available.
Click HERE to view one of these combo's in a 
customer's car

click image for larger view


805 HP on PUMP GAS

with March Serpentine System modified for use with an electric water pump and a crankcase evac pump