NC Engine Builder
Grumpy Old Man
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The bore
I was asking WHICH one
And for safety's sake, check the fuel pressure and regulate it to 5# for the street.Just remove the block off plate, should be a eccentric in there, and for general street use, I find a std parts store replacement pump to work just fine.
If it helps, just think of it this way. All it is is a smaller cubic inch version of a 360, lacking the roller cam, and with magnum heads.
Yes, he told me bore was.090The bore
tried a few different auto supplies mech pumps , ended up with a summit carter hi-perf # m6270 . same one mopar use to sell . and it had 1/4 pipe threads for your brass fittings , no more soldered fitting n hose barb . and its screwed together not crimped .
I for one, am willing to answer any questions you have to help you get this thing in your car. And I asked what flywheel you got, because I was concerned about the ballance... a LA360 and magnum 360 are both external ballance, but by a DIFFERENT amount....what was the ballance job done with? You want to know this BEFORE putting the engine in and living with vibration
View attachment 1715062063
MOPAR Flywheel it has 130 Teeth,... for the 10.5" Clutch
For use on pass cars, & pickups,.. behind 360 & 5.9 Magnum Dodges, Correct for External balance engines.
Picture #1 shows the correct balance,...For
it to work with a 360 & 5.9 external balance Engines.,,
Ok, but magnum and LA is a different amount of offset weight, they are not the same
Definitely run a fuel regulator those fuel pump kick out 7+# I installed one on my MRL 360 delivered last fall, but I got rid of the Summit 750. I didn't care for the Holley/Autolite copy on Air Gap style intake (same as yours on the LA). I installed an Edelbrock carb, which does make as much power but it's a weekend Cruiser. The Summit Carb was pig rich blogging/sputtering at 15-20 mph. AC Plugs all carbon fouled. I dumped those plugs for NGK. Ran much better and tweaking the carb alittle richer. Edelbrock' should their tune better, but don't make as much as a Holley. I am rebuilding tuning the Carter 625 which will go on it.
I am still fighting through some gremlins since the install last fall, but getting there. Trans leak and a heater core.
Good luck with your install. I have been pleased/happy with my MRL build, but need to change the oil filter adapter fitting it's end threads are booger'd up. I noticed this after the first oil change. Summit Carb was diluting the oil. I have picked up a new adapter.
Got a 600 proform that Mike sent with the motor, and I got the Carter fuel pump that was recommended to run....
suggestions on a fuel regulator ?
I will get some NGK plugs also got a part number for those ?
Any other suggestions for other parts ?
Must appreciated help on the info !!!
I got a Holley regulator p/n 12-840 cause it matched up with my Mopar Performance valve covers and air cleaner.
If you don't want to spend that much, Summit has a quality regulator that I believe is made by Holley. P/N sum-3032. Both are adjustable 4.5 - 9#. I mounted mine on the inner fender well by the alternator and ran 3/8" steel line from the Carter fuel pump to the regulator. Try to use as much steel line as possible. I believe you will need a adapter as the output on the pump is 5/16"
Sorry, I don't know anything about Proform carbs, but they all follow the same principles
I just used the stock NGKs. Oreillys has them in stock or RockAuto. P/N 2635 GR4 gapped at .035 with the FBO ignition probably can gap at .040, but I used .035. I noticed a big difference with the NGK over the ACs that came with the engine.
I had to fabricate a throttle return spring as the intake has dual mounts for Magnum/LA but mine is an LA, which you shouldn't have that issue.
Six Pack won't be inexpensive I guess.
Some would say soIsn't the 71 TQ one year only and better off with the more common 72 and up?