Pushing limits of factory 6.0
Thread Starter
TECH Enthusiast
Joined: Nov 2006
Posts: 743
Likes: 4
From: melbourne (Aus)
Pushing limits of factory 6.0 I mainly lurk in the carb section, but few people were interested so i'll post here. A few years back I built a super budget 6.0 for a drag car and it ran 10.000@135.5 with 1.43 60ft in ~2700lb car.
-6.0 alloy stock bottom end, with new bearings, fly-cut pistons 60/70 thou
-double row timing chain, ls7 lifters
-5364 rectangular heads, unported, but decked 100thou (11.9:1 comp), pac beehive springs, trunion upgrade
-236/246 615/615 110 cam
-vic jnr L92 with 2" spacers
-950 (850) custom e85 carb (horsepower innovations)
Got bored with that car and bought another roller, then started swapping everything over. Was going to just upgrade to slightly bigger hyd cam, but my engine buddy offered me a solid roller upgrade deal i couldn't refuse. We were extremely happy with factory bottom end and even the rectangle port heads, so we decided to really see how it will go. Head buddy of mine wanted to try some things with the factory head as well, after 3 mths i got them back recently. also decided to try the new ls3 super vic
New part list
-cam motion 256/265 706/706 106 solid roller
-morel solid roller lifters
-jesel mohawk 1.7 rockers
-3/8 thick wall pushrods
-mast cast rocker cover
-hand ported ls3 super vic
-hand ported 5364 rectangle heads (380cfm@800, ~400cfm@1"
-stainless steel hollow inlet 2.165 and solid 1.6 exhaust
-pac 1335 double valve springs
-gz motorsports vac pump
with a few tricks and more shaved off head compression will be high 12's, going to stick with my e85 carb. In the final stages of assembly and will be hitting the engine dyno soon.
-6.0 alloy stock bottom end, with new bearings, fly-cut pistons 60/70 thou
-double row timing chain, ls7 lifters
-5364 rectangular heads, unported, but decked 100thou (11.9:1 comp), pac beehive springs, trunion upgrade
-236/246 615/615 110 cam
-vic jnr L92 with 2" spacers
-950 (850) custom e85 carb (horsepower innovations)
Got bored with that car and bought another roller, then started swapping everything over. Was going to just upgrade to slightly bigger hyd cam, but my engine buddy offered me a solid roller upgrade deal i couldn't refuse. We were extremely happy with factory bottom end and even the rectangle port heads, so we decided to really see how it will go. Head buddy of mine wanted to try some things with the factory head as well, after 3 mths i got them back recently. also decided to try the new ls3 super vic
New part list
-cam motion 256/265 706/706 106 solid roller
-morel solid roller lifters
-jesel mohawk 1.7 rockers
-3/8 thick wall pushrods
-mast cast rocker cover
-hand ported ls3 super vic
-hand ported 5364 rectangle heads (380cfm@800, ~400cfm@1"
-stainless steel hollow inlet 2.165 and solid 1.6 exhaust
-pac 1335 double valve springs
-gz motorsports vac pump
with a few tricks and more shaved off head compression will be high 12's, going to stick with my e85 carb. In the final stages of assembly and will be hitting the engine dyno soon.
