1992 5.9 LA Roller Cam Motor Build?
A bit of an old thread but I'll add my build:
This was a motor out of a 1990 Dodge Ramcharger that I save from the Recyclers for $500, Sold the rest of the Ramcharger for parts to a young 17 yr old Girl who had an 87 Ramcharger for $400.
So basically I started with a $100, 1990 360 LA roller.
Stock bore at 4.0" (the motor only had like 60,000 miles on it). Stock stroke at 3.58.
Pistons are Speed-Pro: H116CP, on my engine the pistons are about .027 below deck.
My 308 heads were milled a bit some time in the past the chambers were measured to about 67cc. So my Compression is around 9.6:1
Cloyes Double Roller timing chain.
Lunati Voodoo Retrofit Roller cam: 20200711 - Duration (Int/Exh): 270/279 ;Duration @ .050 (Int/Exh): 219/227 ;Gross Valve Lift (Int/Exh): .515/.530 ;LSA/ICL: 112/106 ;Valve Lash (Int/Exh): Hyd/Hyd ;RPM Range: 1800-5800
- This cam has very good Low to mid-range torque but I think I should've went with the 20200712: Voodoo Retro-Fit Hydraulic Roller Cam - Chrysler 273-360 282/290 better mid-range to high-range stats IMO
The 308 heads also had some very light porting in the past, I machined the valve area to put on Comp 996-16 springs.
I currently have a Weiand Action Plus intake which is real good, But I just acquired an Eddy Air-Gap for a steal, going on this weekend!
I have Hooker Comp headers (free, came with car).
Street Demon 750 tuned to 4500 feet alt.
The A999 trans came out of a 1988 Dodge diplomat.
Performance rebuild kit with Alto Red Eagle clutches and Kolene steels. Turbo Action's Cheetah stage 2 valve body. Hughes 2000 stall TQ converter :( (the only yuck part, but it was free).
3.21 rear gears for now. A 3.90 with an A500 4spd is in the near future.
Overall, I put on a very happy 40,000 miles on this motor, but I know there is more potential to this motor to be had. Which is going to happen real soon, with a bore job, new pistons, bigger cam. And either a full port job on the 308 heads or get aluminium ones.
City mileage ranges from 9 to 11 (depends if I'm froggin' the throttle or not)
Highway mileage ranges from high 14 to around 17+ (between 2700-3000 rpm) 65-70 mph with 26.5" rear tires (245/60R15). Wind, hill's, construction & temps all play a factor.
Partial list:
Voodoo Retro-Fit Hydraulic Roller Cam - Chrysler 273-360 270/279
https://www.summitracing.com/parts/cca-996-16
https://www.summitracing.com/parts/clo-c-3028x/make/dodge
https://www.summitracing.com/parts/slp-h116cp/make/dodge
The spikes were my trips to Colorado and back (1000 miles round trip) & a hunting trip to my father's property and back (272 miles round trip). I did get a best of 17.2 mpg in July 4th weekend of 2019, but wasn't tracking it on this app at the time.
A bit of an old thread but I'll add my build:
This was a motor out of a 1990 Dodge Ramcharger that I save from the Recyclers for $500, Sold the rest of the Ramcharger for parts to a young 17 yr old Girl who had an 87 Ramcharger for $400.
So basically I started with a $100, 1990 360 LA roller.
Stock bore at 4.0" (the motor only had like 60,000 miles on it). Stock stroke at 3.58.
Pistons are Speed-Pro: H116CP, on my engine the pistons are about .027 below deck.
My 308 heads were milled a bit some time in the past the chambers were measured to about 67cc. So my Compression is around 9.6:1
Cloyes Double Roller timing chain.
Lunati Voodoo Retrofit Roller cam: 20200711 - Duration (Int/Exh): 270/279 ;Duration @ .050 (Int/Exh): 219/227 ;Gross Valve Lift (Int/Exh): .515/.530 ;LSA/ICL: 112/106 ;Valve Lash (Int/Exh): Hyd/Hyd ;RPM Range: 1800-5800
- This cam has very good Low to mid-range torque but I think I should've went with the 20200712: Voodoo Retro-Fit Hydraulic Roller Cam - Chrysler 273-360 282/290 better mid-range to high-range stats IMO
The 308 heads also had some very light porting in the past, I machined the valve area to put on Comp 996-16 springs.
I currently have a Weiand Action Plus intake which is real good, But I just acquired an Eddy Air-Gap for a steal, going on this weekend!
I have Hooker Comp headers (free, came with car).
Street Demon 750 tuned to 4500 feet alt.
The A999 trans came out of a 1988 Dodge diplomat.
Performance rebuild kit with Alto Red Eagle clutches and Kolene steels. Turbo Action's Cheetah stage 2 valve body. Hughes 2000 stall TQ converter :( (the only yuck part, but it was free).
3.21 rear gears for now. A 3.90 with an A500 4spd is in the near future.
Overall, I put on a very happy 40,000 miles on this motor, but I know there is more potential to this motor to be had. Which is going to happen real soon, with a bore job, new pistons, bigger cam. And either a full port job on the 308 heads or get aluminium ones.
City mileage ranges from 9 to 11 (depends if I'm froggin' the throttle or not)
Highway mileage ranges from high 14 to around 17+ (between 2700-3000 rpm) 65-70 mph with 26.5" rear tires (245/60R15). Wind, hill's, construction & temps all play a factor.
Partial list:
Voodoo Retro-Fit Hydraulic Roller Cam - Chrysler 273-360 270/279
https://www.summitracing.com/parts/cca-996-16
https://www.summitracing.com/parts/clo-c-3028x/make/dodge
https://www.summitracing.com/parts/slp-h116cp/make/dodge
The spikes were my trips to Colorado and back (1000 miles round trip) & a hunting trip to my father's property and back (272 miles round trip). I did get a best of 17.2 mpg in July 4th weekend of 2019, but wasn't tracking it on this app at the time.
