my 1957 chevy+ ThunderValley

swampratt

Sharpshooter
Supporting Member
Special Hen Supporter
Joined
Nov 3, 2010
Messages
9,127
Reaction score
6,882
Location
yukon ok
I wish my buddy would stick his engine together that i built for him many years ago and dyno it.
He bent a rod when he left it out in the rain and hydrauliced it.

It was a 355' with ported 305 heads 1.94-1.50 valves a 292H cam and tunnelram with 2 600 afb's.
It went 11.94 at 116 mph in a 78 nova on 91 octane 7-11 gas.

He just needs a new set of pistons and 1 rod and some time.

I will be finishing my 385" flat top engine pretty soon and test it,. hope I make at least mid 300Hp at the wheels
 

swampratt

Sharpshooter
Supporting Member
Special Hen Supporter
Joined
Nov 3, 2010
Messages
9,127
Reaction score
6,882
Location
yukon ok
400 crank HP or wheel HP?
400 crank HP is almost too easy today, even the tiny 327" can get that with a smallish roller cam XE270HR and good heads afr 180 eliminator.
Some flat tops and performer rpm intake.
 

swampratt

Sharpshooter
Supporting Member
Special Hen Supporter
Joined
Nov 3, 2010
Messages
9,127
Reaction score
6,882
Location
yukon ok
I thought about the LS platform then priced a gasket set for the LS. I'm out.
I have been in and drove the stock 5.3 stuff and some 5.3 trucks with some tune mods and exhaust. not my cup of tea I suppose.
They feel a bit slow.

More for all of you guys I guess.
When I tear all my small blocks up I have 3 big blocks to play with.
2 are 396's and 1 427"
Actually thought about an old school 396 build with the forged pistons I have and some open chamber heads to keep compression in the below 9:1 area.
Then a dual draw through turbo set up blowing into a tunnel-ram.
Like the old boats used to run.
 

swampratt

Sharpshooter
Supporting Member
Special Hen Supporter
Joined
Nov 3, 2010
Messages
9,127
Reaction score
6,882
Location
yukon ok
I took it to Abel Racing and MoBoost stuck this pig on the dyno.
It made 217 at the wheels.
Changed timing and made 1HP different I think that is what it was,, then i changer rear metering rods to make it richer just because it was already rich.
Made 3 less HP.. not picky on the tune.
Next time it see's the dyno it will have dumps installed and possibly larger fuel line than the factory stock 5/16"

Thank you Abel Racing for the dyno time .
 

gfercaks33

Sharpshooter
Special Hen
Joined
Dec 12, 2008
Messages
2,242
Reaction score
78
Location
okc
That's not half bad!
With the ls platform in trucks they don't feel "hot rody" my truck has the 5.3 in it with a tune and some minor upgrades and while it feels better then stock it still feels like a truck. I do think when I'm done with this small block I have I will be looking into a 6.0 with some goodies.
 

Latest posts

Top Bottom