| 4-25-2007 I have had this engine together for a few months and its purpose was to evaluate a few things. 1- Build an economical pump gas (9.4 to 1 compression) Stage 1 turn key crate engine 2-Test comparing a stock set of Buick oil pump gears and wear plate ( AM&P blue printed), and the new Finishline/AM&P anti cavitation wear plate. Details on this later 3- How much horse power is a crankshaft scraper. 4- Test the late Bill Metzgers (Lazer Cams) last design cam for a basically stock Stage 1 455 |
| 5-10-2007 This engine has nothing special in it and has a few things that I otherwise would not normally use in most performance builds. It has a 20-20 crank, .060 over pistons and rings, un-ported 1973 heads to AM&P Stage 1 specs and a few good used parts. We did our usual dyno break-in procedure then changed the valve springs, set the timing on a modest 34 degrees total and made a few pulls and was pleasantly surprised to get 541.3 lbs ft of torque at 3600 RPM and 416.3 HP @4900 RPM. It made 500 lbs ft of torque @2600 RPM. It made 402.9 HP @ 4100 RPM. Ole Bill sure hit the combination for this cam. The specs are similar to the Stage 1 cam with 210/225 duration @.050 on a 112 LCS but the lobes have more area under the curve with .462-.476 lift. This engine could well run in the 12's with a 3.08 or 3.23 gear and only have to turn it about 5400 RPM. |
This engine will be for sale as soon as tests are finished this week, a complete list of parts and
services will be posted along with price. It will come with as shown in this photo with the
exception of the dyno water pump drive and headers.
services will be posted along with price. It will come with as shown in this photo with the
exception of the dyno water pump drive and headers.
5-25-2007
I didn't get to do the anti-cavitation plate test because of time restraints but I will do
that on the next "Mule"
I did do the crank scraper test with some disappointing results in that it was only
worth about an average 1.5 HP and no more than 3 HP at any RPM. The results may not
be accurate because we modified it to make it easy to take out. I will in a future test do it
without a modified scraper.
I didn't get to do the anti-cavitation plate test because of time restraints but I will do
that on the next "Mule"
I did do the crank scraper test with some disappointing results in that it was only
worth about an average 1.5 HP and no more than 3 HP at any RPM. The results may not
be accurate because we modified it to make it easy to take out. I will in a future test do it
without a modified scraper.
7-7-2007
The "Mule" was such a hit on its economical price and "free core" we have decided to build
them as parts become available to do them at a price discounted form our regular crate engines.
Please note that these engines will have blocks that do not clean up at .030, cranks that wont
clean up at .010 -.010, and may have some really good used parts. To keep the price down a
carburetor and distributor must be furnished
The "Mule" was such a hit on its economical price and "free core" we have decided to build
them as parts become available to do them at a price discounted form our regular crate engines.
Please note that these engines will have blocks that do not clean up at .030, cranks that wont
clean up at .010 -.010, and may have some really good used parts. To keep the price down a
carburetor and distributor must be furnished
6-1-2007
This engine was sold at the GS Nationals Read below
This engine was sold at the GS Nationals Read below
The AM&P "Mule"
5-16-2008
We currently have an 87 octane "Mule" 8.5-1 compression that has a Stage 1 cam instead
of the Comp Cam we normally use. Most of the parts in the engine are like new used parts. It has
a complete Stage 1 conversion on the heads including hard exhaust seats. It comes complete
carb to pan, damper to flex plate. It has a point type distributor with new Crane Fireball electronic
conversion. It had the cam broke in on the dyno and was tuned.
508 lb ft of torque and 373 HP. $4,995.00
We currently have an 87 octane "Mule" 8.5-1 compression that has a Stage 1 cam instead
of the Comp Cam we normally use. Most of the parts in the engine are like new used parts. It has
a complete Stage 1 conversion on the heads including hard exhaust seats. It comes complete
carb to pan, damper to flex plate. It has a point type distributor with new Crane Fireball electronic
conversion. It had the cam broke in on the dyno and was tuned.
508 lb ft of torque and 373 HP. $4,995.00