http://www.proformanceunlimited.com/ 461 Pontiac Engine
You can view this engine package at the following link: http://www.proformanceunlimited.com/specs/pontiac_461tk.html
Pontiac 461 stroker with 475 HP engine package with Edelbrock aluminum heads and a forged rotating assemble.
Pontiac 461 Stroker On Test Stand SEE END!
LAST 10 SECONDS OF VIDEO ARE BEST!! Here is my Pontiac 461 Stroker with Open Race Headers on home built Dyno test stand. This engine features Edelbrock heads, Hooker Supercomp Roundport Headers, and a few other tricks. Makes 535hp, 595/ftlb tourque. Now installed in my black 69 GTO 4spd.
Pontiac 400 for sale Edelbrock heads, comp cam, quick fuel carb, be cool radiator
This 400 was rebuilt 18 months ago. It has 3800 miles on it. It has Edelbrock heads, comp cams 305h magnum cam and edelbrock lifters, cloyes double roller timing chain, arma-steel crank, scat forged rods, ross forged pistons +.030, melling ram air 4 high pressure oil pump, clevite bearings, harland sharp 1:65 roller rockers, edelbrock torker II intake, quick fuel 850 double pumper carb, also includes the be cool radiator with the electric fans
Edelbrock RPM Olds 455 Head Porting
The scariest thing I ever did was port a set of new Edelbrock aluminum cylinder heads. My first attempt at porting any cylinder head. I raised the roof .200" and dropped the floor .040". It's best to leave the floor alone or raise it by filling with epoxy. Porting kit by Mondello.
This is the Dyno of my pontiac 400 rebuild for my 1969 Firebird. It's bored and stroked to 468 cu. in. It has a crane cam 238/246 duration at 50, 114 separation. Edlebrock performance Ram Air IV aluminum heads. Holley 770 carb. March aluminum bilet pulleys. It Dyno'd out at 515 hp, 544 ft lbs at 5700 rpm.
The body (1969 Firebird) and interior is currently being restored. Can't wait to drop it back in and take it for a spin!
PONTIAC 461 ENGINE DYNO TEST
This is a 73 Pontiac 400 that has been stroked to 461. Heads are 4x 7h with 1.77 ex valves filled xover magnum roller rockers, cast crank forged pistons and rods. Cam is TOMAHAWK TC-02-HF comp ration is 9.3 to one. It made 507 FT LBS torque and 428 HP
1969 pontiac lemans 455
Here's a video of my 69 lemans with rebuilt 455 bored .040 over (464), speed pro pistons, edelbrock rpm camshaft, 6x-8 heads ported, comp cams rollertip rockers, edelbrock valve springs, procomp intake, 750cfm edelbrock carb, and flowtech headders. This combo makes great power and I love the torque this monster makes. Next upgrade will be edelbrock aluminum heads to really wake this beast up! Please comment on engine combo, body, and suggestions. Thanx
Live engine run..461 Pontiac Stroker 475HP by Proformance Unlimited Custom Crate Engines
You can view our complete Pontiac engine line at the following link: http://www.proformanceunlimited.com/pontiac.html
Proformance Unlimited is well known for it's custom designs. If you are restoring your early Pontiac we can upgrade the horse power and still keep it looking original.
Whether your vehicle is a GTO, Fire Bird, Trans Am, Lemans, or a timeless classic, here at Pro-formance Unlimited we are here to help design and build the engine combination that will match you with your vehicle. Please browse our crate engines listed below or custom design one of your own. From that special built stroker engine to that turn-key drop in ready crate engine, call Doug or Steve we will be happy to answer any of your questions.