.509 Purple cam in my want to buy 1971 Scamp

-
bremereric

bremereric

Well-Known Member
Joined
Dec 18, 2009
Messages
1,271
Reaction score
20
Location
Houston, Texas
.509 Purple cam duration 292 in a streetable car...1971 Plymouth Scamp

I am about to buy a really nice 1971 Plmouth Scamp....it has a 340 with "X" heads..hooker headers that dump into 2 1/2" exhaust and dumps into 40 series flowmaster mufflers...the cam is that dreaded .509 purple cam with 292 duration...any ideas on how streetable this car will be...it has 3.55 suregrip 8 3/4" rear with some MT street radials...front disc brakes and he added line lock....

BzEiuHgWkKGrHqJhgEw5L-tocBMUY8Z8Udg_12-1.jpg


BzEinl2kKGrHqFisEw4sl9TWBMUY8BzztQ_12-1.jpg


BzEihQCGkKGrHqNjcEw47NYtBMUY7qEbig_12-1.jpg


BzEi01CWkKGrHqVikEw5e91ndBMUY8y5P8w_12-1.jpg


BzEjItwB2kKGrHqFi0Ew5WCgOFBMUY98J5YQ_12.jpg


BzEjCOQEWkKGrHqFikEw5b4kd5PBMUY9ljO_12.jpg


BzEi6CB2kKGrHqRjYEw45yVZQTBMUY9HFc4Q_12.jpg


BzEjP9BmkKGrHqZh4Ew5Cnom2WBMUY-R4g-w_12.jpg
 
Damn man, the color combo on that car looks great!
 
Save yourself the trouble and bring it up to me.
 
LOL at you guys...

To answer your question, the gear ratio is a bit numericaly low for the cam. You also didn't mention the stall converters rating, so, while it could be a very doable combo, I myself would go 1 of 2 ways for a better runner. This would be ethier;

1. get a new gear ratio, 3.91's min. Tire size plays a roll in this.

2. (With the gear ratio staying at 3.55's.) Change out the cam for something more street freindly, drop the duration down some. A nice split pattern cam from Comp Cams, Hughes engines or Lunati.

Sweet lookin ride dude! I bet that things has long legs on the top end.
 
What's the compression ratio? It needs a bit of squeeze for the 508 to work it's best. I'd reccomend 3.91's as well.

I'd want a minimum of 3500 stall behind it.
 
Rockerdude said:
Damn man, the color combo on that car looks great!
Click to expand...
You are correct sir

jefflock said:
Save yourself the trouble and bring it up to me.
Click to expand...
NFW...no fricking way..its mine

rumblefish360 said:
LOL at you guys...

To answer your question, the gear ratio is a bit numericaly low for the cam. You also didn't mention the stall converters rating, so, while it could be a very doable combo, I myself would go 1 of 2 ways for a better runner. This would be ethier;

1. get a new gear ratio, 3.91's min. Tire size plays a roll in this.

2. (With the gear ratio staying at 3.55's.) Change out the cam for something more street freindly, drop the duration down some. A nice split pattern cam from Comp Cams, Hughes engines or Lunati.

Sweet lookin ride dude! I bet that things has long legs on the top end.
Click to expand...
Already thinking of comp cams hydraulic roller...230/236 534/538 lift..had it before in my previous 340

DusterKrazy said:
What's the compression ratio? It needs a bit of squeeze for the 508 to work it's best. I'd reccomend 3.91's as well.

I'd want a minimum of 3500 stall behind it.
Click to expand...
Questions to be asked...stall...CR and so forth

mopardude318 said:
Nice car, buy it anyway!
Click to expand...
I will..
 
292/508 MP cam will be a dog on low end torque and with 3.55's. A 4-spd tranny is really best with the 508 cam and 3.91/4.10 gears.

Beautiful car but swap the cam to something more streetable like a Comp Cam 274 or 280H or a Lunati Voodoo cam.
 
I would switch to a smaller cam like the MP 268/272 or the comp XE268, both have worked well for me in small block A bodys with street gears. If it has a decent converter already the MP 280/.474 will run good in it.
 
Okay I went to a real nice guys house....huge....huge 4 stall 2 car deep garage....now the delema....too many cars to choose from....some won't like the choice I made but I did not buy the Scamp....too many little things wrong with it...had a great all new interior and strong engine and drivetrain...the .509 cam was a dog until you got up to 3000 rpm then it roared to life....paint job had some issues...rust bubble around rear window and top trim....lower rusty corner on the drivers door...and worst of all the master cylinder was leaking and ate up the paint underneath it...will post picks of the choice I made later on...Thanks Eric
 
You must log in or register to reply here.
-

Back
Top