Dirk's Detroit Muscle

Runs March 5th through April 15th.
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Dirkpitt289
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Dirk's Detroit Muscle

Post by Dirkpitt289 »

After a long self inflicted back and forth argument I've finally settled on a subject for this group build. Seeing that most of the subjects so far seem to be of the odd to obscure, economic to borderline super car. All great choices but I felt I needed to take another track. My choice is a "Bull in a China Shop" kind of car. It's a jeans and tee shirt kind of car. No one will ever stop at a traffic light and ask the driver for some Grey Poupon mustard. My choice is a car that down to its smallest fastener screams AMERICAN muscle car. My choice will be the....

1970 Mustang Boss 302.

This is what I call my "Lottery Car." That is a car that if I was to defy all the odds and win the lottery I would buy one no matter the cost.

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The History of the Boss 302

What is a BOSS 302? It's a car, right? No, it's an engine. Well, yes, it's an engine and a car. Actually, it's car, a Ford Mustang, named for an engine, a special purpose built race engine. The Ford BOSS 302 Mustang, built for model years 1969 and 1970, is named for its engine.
So which came first the car or the engine? The car. The Ford Mustang was introduced on April 17, 1964. In the 1960's, Ford was heavily involved in racing. The catch phrase was, "Win on Sunday, sell on Monday." In 1966 and 1967, Ford, with the help of Carroll Shelby and his Shelby-American company, raced Mustangs in and won the Sports Car Club of America (SCCA) Trans-American (Trans-Am) Sedan Racing series.

General Motors' Chevrolet division introduced their Camaro Z/28 to compete with the Mustang in the 1967 model year. Not only did Camaro compete on the street and in the sales showrooms, it competed in the Trans-Am series as well. In 1968, Camaro won the series championship. It was a dismal year for the Mustang. Mustang's failure to win the 1968 championship was blamed on a new engine known as the "Tunnel-Port." For 1969, Ford had to do something to win back the Trans-Am championship.

One part of the SCCA rules stated the manufacturers had to sell what they raced. It was Larry Shinoda, a former GM stylist, now working at Ford who created the car's unique styling and came up with the name BOSS 302 for the car and engine that would go into production so Ford could race it in 1969 and 1970. The BOSS 302 was offered in the 1969 and 1970 Mercury Cougar Eliminator as well.

The BOSS 302 Mustang won the Trans-Am championship in 1970 and entered the history books.

The Kit

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This is a re-tooled kit from the old MPC 1970 Mustang kit, and it has been re-released several times, this time for the 40th Anniversary of the Mustang.

This kit includes 90 + parts to include clear, black vinyl, chrome, and white styrene plastic parts. The Boss 302 engine can be build either stock or custom version with over 18 parts just to complete the highly detailed engine. The interior accurately represents the 1970 Boss Mustang complete with detailed three-spoke steering wheel and passenger dash mounted clock. The body is warp free and does not have any flash; the front left fender corner panel top edge was a slight sink mark that will need attention. Windshield wipers are molded into the body as is common with most Revell-Monogram kits. The windshield was scratch free and it was wrapped separately in plastic, this was nice to see for once. The wheels and tire accurately represent the Boss 302 Mustang, overall this kit should be an easy build and it will require skill when installing the chassis to the body.

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See you on April 15th
.... Dirk

Beware of the DOG's of WAR

My Youtube Channel
https://www.youtube.com/user/ModelingGu ... rid&view=0
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Jagewa
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Re: Dirk's Detroit Muscle

Post by Jagewa »

Don't wait to start on April the 15th Dirk, that's the checker flag date.

What's the custom bits?

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Jim
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Dirkpitt289
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Re: Dirk's Detroit Muscle

Post by Dirkpitt289 »

I meant March. My bad
.... Dirk

Beware of the DOG's of WAR

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https://www.youtube.com/user/ModelingGu ... rid&view=0
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Re: Dirk's Detroit Muscle

Post by JohnRatzenberger »

Actually, I took it to mean that finely tuned muscle car was going to limp over the finish line ... :ha:
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Re: Dirk's Detroit Muscle

Post by JamesPerrin »

The bronze green is the photo looks a million miles better that the blue box art.
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Re: Dirk's Detroit Muscle

Post by splash »

Nice one Dirk I look forward to seeing you build this one.

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Re: Dirk's Detroit Muscle

Post by Narayan »

Fantastic choice Dirk. American muscle cars are some of the finest cars in my humble. I have to ask though. Who does stop at a traffic light and ask the driver for some Grey Poupon mustard? And more importantly, what is Grey Poupon mustard?!

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Re: Dirk's Detroit Muscle

Post by Dirkpitt289 »

Here is one of the many commercials

http://youtu.be/NmannAYiwh0
.... Dirk

Beware of the DOG's of WAR

My Youtube Channel
https://www.youtube.com/user/ModelingGu ... rid&view=0
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Re: Dirk's Detroit Muscle

Post by Narayan »

Ah, I see. It's all clear to me now!

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Re: Dirk's Detroit Muscle

Post by Dirkpitt289 »

Boss 302 Engine Specs

The Boss 302 cubic inch small block V8 motor was made by taking the heads from the Ford Cleveland and adding them to the 4 bolt heavy duty block of the Ford Windsor. The design of the heads themselves are called “tunnel-port” because of the way the pushrod runs a straight path through a round intake port in its center therefore flowing better. The tunnel port design was used on the 427 FE first then was later adapted for the Boss in 1968.

The heads of the Cleveland were arranged in canted-valve staggered style in order to allow for the extra room needed. The Boss 302 used intake valves that were 2.23 inches diameter and Exhaust valves of 1.72 inches diameter in 1969. In 1970, the intake valves were 2.19 inches diameter and the exhaust valves of 1.72 inches diameter. These heads also featured steel spring seats, adjustable rocker arms, screw-in rocker studs andpushrod guide plates and these head features were actually used on the Boss 302 before the Cleveland was officially developed or introduced to the public.

The Boss 302 stock mechanical camshaft had a high lift and long duration using a solid lifter with an automatic acceleration rate of 2.47. It features intake duration of 290 degrees with an intake centerline angle of 111 degrees and Lobe centerline angle of 116.0. The exhaust duration is 290 degrees with an exhaust centerline angle of 121 degrees and the valve overlap at 58 degrees.

Other specs for the Boss 302 from 1969 to 1971 (Begley, 2002) are as follows:

Bore and Stroke: 4.004 inches by 3.0028 inches (1.1.6 mm by 76.0 mm)
Compression Ratio: 10:5:1
Maximum Horsepower: 290 BHP @ 5800 RPM
Maximum Torque is 290 pounds per square foot @ 4300 RPM

For the time this motor was a monster and is still highly sought after. This particular motor was also place in the 1970 Mercury Cougar Eliminator.

Here is the beginnings of our Boss 302 motor

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One of the most noticeable parts of the Boss 302 motor is the big valve covers. Revell had them chromed. I wanted to make them look more like the real deal so I pained them aluminum.

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I also started painting assorted parts

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Thanks for looking
.... Dirk

Beware of the DOG's of WAR

My Youtube Channel
https://www.youtube.com/user/ModelingGu ... rid&view=0
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Re: Dirk's Detroit Muscle

Post by splash »

Is that engine slightly bigger than the Mini's 850cc ? :roll:

I get confused converting cc to inches. :grin:
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Re: Dirk's Detroit Muscle

Post by Dirkpitt289 »

I think that engine weighs more then an entire Mini.
.... Dirk

Beware of the DOG's of WAR

My Youtube Channel
https://www.youtube.com/user/ModelingGu ... rid&view=0
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Re: Dirk's Detroit Muscle

Post by flakmonkey »

It's interesting how big these things are. I know a guy who used to own a '72 Mach 1. Never took a tape measure to it, but it was approximately the same size as Wales.
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Dirkpitt289
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Re: Dirk's Detroit Muscle

Post by Dirkpitt289 »

The 71 through 73 Mustangs were huge.
.... Dirk

Beware of the DOG's of WAR

My Youtube Channel
https://www.youtube.com/user/ModelingGu ... rid&view=0
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Dirkpitt289
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Re: Dirk's Detroit Muscle

Post by Dirkpitt289 »

The interior has been painted and flocked.

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Dash panel got some attention.

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Also started wiring the 302 motor last night but don't have any photos yet.

Thanks for looking
.... Dirk

Beware of the DOG's of WAR

My Youtube Channel
https://www.youtube.com/user/ModelingGu ... rid&view=0
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