waldo
New Member
- Joined
- May 11, 2023
I recently acquired a GM HEI out of a 1976 Buick Skylark with a 231 V6. I have several questions regarding this engine.
First, the engine has a rear dump exhaust manifold on the driver's side. I would like to use it on my M38 w/225 V-6 and eliminate the front dump crossover. Will the 231 exhaust manifold fit on my 225?
Next, I have read of various ignition component failures (often on aftermarket HEI offerings). I plan to replace ALL of the electrical components during a rebuild as they appear to be all original. As might be expected, my primary interest is reliability. There are numerous aftermarket components available (as well as numerous forum posts as to their poor quality/failures). If anybody, who has first hand experience, regarding the dependability of these pieces (Coil, control module, pick-up, eluctor)(factory or aftermarket), I'd like to know about it. I intend to carry all the take-offs as emergency spares, but would rather Go Jeepin' than wrench on my dead engine somewhere west of Moab.
Lastly, I have two MSD ignition boxes (a 6A & a 6AL). I won the 6AL in a raffle some 20 years ago but never had a vehicle suitable for the box. In the box was a small catalog in which was mentioned a service for conversion of the box to an "odd-fire" configuration. I contacted MSD, however, since MSD'd acquisition by the Holly Performance Group, this service is no longer available. Does anybody out there know how to go about this modification?
I mourn the consolidation of all these aftermarket suppliers as they get gobbled up by the conglomerates. You can't get an odd fire cam from Comp Cams anymore (try getting one from anybody), or Lunati, or TA Performance or any of the normal channels. Found a cam at Isky's for more $$$$'s than Comp's full kit (Cam, lifters, springs, retainers, timing set), and it wasn't a suitable grind for Jeepin'. The lowly 225 V6, although still a popular engine, just doesn't bring in the big profits. Thank you Edelbrock. And thanks to Holly, too!
First, the engine has a rear dump exhaust manifold on the driver's side. I would like to use it on my M38 w/225 V-6 and eliminate the front dump crossover. Will the 231 exhaust manifold fit on my 225?
Next, I have read of various ignition component failures (often on aftermarket HEI offerings). I plan to replace ALL of the electrical components during a rebuild as they appear to be all original. As might be expected, my primary interest is reliability. There are numerous aftermarket components available (as well as numerous forum posts as to their poor quality/failures). If anybody, who has first hand experience, regarding the dependability of these pieces (Coil, control module, pick-up, eluctor)(factory or aftermarket), I'd like to know about it. I intend to carry all the take-offs as emergency spares, but would rather Go Jeepin' than wrench on my dead engine somewhere west of Moab.
Lastly, I have two MSD ignition boxes (a 6A & a 6AL). I won the 6AL in a raffle some 20 years ago but never had a vehicle suitable for the box. In the box was a small catalog in which was mentioned a service for conversion of the box to an "odd-fire" configuration. I contacted MSD, however, since MSD'd acquisition by the Holly Performance Group, this service is no longer available. Does anybody out there know how to go about this modification?
I mourn the consolidation of all these aftermarket suppliers as they get gobbled up by the conglomerates. You can't get an odd fire cam from Comp Cams anymore (try getting one from anybody), or Lunati, or TA Performance or any of the normal channels. Found a cam at Isky's for more $$$$'s than Comp's full kit (Cam, lifters, springs, retainers, timing set), and it wasn't a suitable grind for Jeepin'. The lowly 225 V6, although still a popular engine, just doesn't bring in the big profits. Thank you Edelbrock. And thanks to Holly, too!

