I don't rightly care about it runnning 87 truck won't be seeing anymore of that stuff any how. . . I could run on 87 till issue it had back 9 year's is solved but then it'll go right back to 93oct.

Truck hasn't had regular gas in 9+ year's. . .I tired regular the first week i had it didn't like how it ran tryed some premium within 75 miles truck started running like new never went back. . .so what ever the issue was 93 corrected it or atleast put a bandaid on it. . .

I'm sure this engine is doing all it can it's just an out dated relic from long gone era and i'm expecting to much from a 6.2L V-6 guess...

I would just think a V-6 that big would alot more gutsy, I guess 40 year's ago these were the 5.9/6.7's, 7.3/6.0L's, and 6.5L/6.6L's of the time. . .

How i wish it was diesel. . .you can make a 50 year old diesel engine scream like a late model with very few altertions. . .

My B61 had 180hp in 1959 that same diesel now is running 315hp all day long ! all they local diesel shop did was add a turbo charger and adjust the fuel. . .tho now i got a non turbo diesel compression ratio with 25psi of boost slamming at it but they say engine should still live 250,000+ mile's just gotta keep it in tune. . . I did sorta alter the triplex and basicly made my own I took the modneren 5spd mack tran's that has OD put a 3 speed behind it so i got low split direct split and high split so it has 2 OD's but now it run's 72mph@2,000rpm instead of 58mph@2250rpm so it's still a 2 stick 15 spd still gotta slit every gear but now i get some road speed strongest/fastest thermodyn on the road well... prolly the only thermodyn on the road most opted for the 237 maixdyn swap than tuned it up to the 250hp version popular in cement truck's of the 70's and 80's. . . the 300 econodyn had an after cooler that wouldn't allow it to fit in the butterfly hood tombstone radatored truck now the B70's and B80's it fit barly as they had more squared out front end. . .

Back on subject sorry for that off shoot:

why can't this old V-6 Be updated just like that ? alter some thing's for more power ?

Engine run's perfect as it is now fires right has good oil pressure don't leak don't burn oil, just dosen't have the power I would expect for it's size. . .
I guess i should listen to everyone else " if ain't broke don't FIX IT! "

Mike D !


1962 GMC K3000, GMC-379 V6.