BBC teardown and diagnosis

[malibu795]

I can't remember the last time I used a timing light....

I own 3 vehicles that need timing lights all 3 run Big Block Chevy engines
97 C3500HD that's been 0411 swapped then swapped to stand alone FAST ezi-efi and ignition. Mainly due to lack of gasser EFI tuning experience
75 K25 GMC Seria
79 Malibu station wagon

 

[malibu795]

Sounds a lot better with heads that have a good valve job what I'm using for mufflers

Source: https://youtube.com/shorts/eEOqrXzpBIg?feature=shared

 

[68ss]

Sounds a lot better with heads that have a good valve job what I'm using for mufflers

Source: https://youtube.com/shorts/eEOqrXzpBIg?feature=shared

Sounds great!

 

[malibu795]

Sounds great!

Thanks
Pulled it out of the shop(bare steel building) and exhausted note dropped ~10db outside floating low 80s

 

[68ss]

Thanks
Pulled it out of the shop(bare steel building) and exhausted note dropped ~10db outside floating low 80s

Sounds like enough vacuum for automatic

 

[malibu795]

Sounds like enough vacuum for automatic

Definitely, at 800rpm it pulls ~16-18 inches and generally that at 55-60 in 5th about 1700rpm. Haven't had it on the freeway yet at 70 which will be 2200rpm, which will probably be close to 20in at cruise.
If I swap back to auto from T56, it's getting a 4L80.

 

[malibu795]

Ran my mess up to 7th G-body Classic in Medina Ohio Saturday. Nothing majorly went wrong. Did 284 miles used 16.8 gallons for just under 17mpg with a carbureted 482BBC running 65-70.
No AC, not much for heat barrier and a glass bowl of a car.
1 of 4 wagons that showed up and 5-6 BBC cars.
I was talking about putting 315 squared 315/335 staggered on my wagon and I saw this olds Cutlass with said 315/335 tire combo...
Its probably my favorite project car there. 600hp LS 5spTKX, 14"/14" discs full suspension, coil overs, he's building for ultimate street car challenge.

 

[Harshman]

I have a 79 Malibu that I have been working on for too many years. Going to be LS 900HP with an 8HP70 8 speed trans. Probably be another year before it comes together. Engine is almost finished. But the car needs a lot yet.

 

[malibu795]

I have a 79 Malibu that I have been working on for too many years. Going to be LS 900HP with an 8HP70 8 speed trans. Probably be another year before it comes together. Engine is almost finished. But the car needs a lot yet.

6-650 crank HP has been my goal for few years now, all the supporting maxes out at 650-700. Should put me 5-550 at the wheels. Which should be plenty to let.me beat up on the newer pony cars and entry-level sports cars at the auto x and HPDE and road tracks