Tranny removal

[Blazin40s]

But I'm only rockin about 400hp

[Jthomas]

What the compression on the motor without the blower

12:1
6.7" pink rods

I have another set of flat top pistons for it, that would probably be better for the street and lower compression. But like I said, I'm on a time frame, so I'll just run like 3-5lbs boost. I could even underdeive the blower and run lower pounds to make me happy with MPGs.

In the boat I have a stock 454 with mild hydraulic roller cam running 9lbs on a 6-71. And it's pretty good on gas cruising day long. But if you hot rod it, then yea, it sucks the fuel.

[ice87]

But I'm only rockin about 400hp

big difference between 400hp and 800hp for a 700r4

[Jthomas]

All day long^^ ignore the stupid

[ice87]

What the compression on the motor without the blower

12:1
6.7" pink rods

I have another set of flat top pistons for it, that would probably be better for the street and lower compression. But like I said, I'm on a time frame, so I'll just run like 3-5lbs boost. I could even underdeive the blower and run lower pounds to make me happy with MPGs.

In the boat I have a stock 454 with mild hydraulic roller cam running 9lbs on a 6-71. And it's pretty good on gas cruising day long. But if you hot rod it, then yea, it sucks the fuel.

if it was me I wouldn't run a blower on that motor with it having 12:1 compression

[OHEARN.2012]

yea but if your going to save up to build the 700r4 why not save up and buy a 400th??

[Jthomas]

yea but if your going to save up to build the 700r4 why not save up and buy a 400th??

Idk, that's what I'm on the fence about.

[Jthomas]

What the compression on the motor without the blower

12:1
6.7" pink rods

I have another set of flat top pistons for it, that would probably be better for the street and lower compression. But like I said, I'm on a time frame, so I'll just run like 3-5lbs boost. I could even underdeive the blower and run lower pounds to make me happy with MPGs.

In the boat I have a stock 454 with mild hydraulic roller cam running 9lbs on a 6-71. And it's pretty good on gas cruising day long. But if you hot rod it, then yea, it sucks the fuel.

if it was me I wouldn't run a blower on that motor with it having 12:1 compression

That's what I was thinking. But that's how the motor came stock from GM (I think)
But like I said, I have another set of lower comp pistons. When we got the motor it was pretty well built from GM. Then we modified it with a little more cam, longer roller rockets, stud girdle, rods and crank.

The motor was featured in the 1976 2nd addition Chevrolet Power manual.

[xjs3667]

you could run a blower but wouldnt go over 3 psi that would bring your compression ratio up to 14:1 but then you need to run racing fuel like 110-114 octane. you dont wanna go over 12:1 on high octane pump gas.

I would advise against it but to each there own lol, Im runnin around 9-10 psi on my motor and have  a 14:1 ratio but it adds up in gas fast lol

[Jthomas]

you could run a blower but wouldnt go over 3 psi that would bring your compression ratio up to 14:1 but then you need to run racing fuel like 110-114 octane. you dont wanna go over 12:1 on high octane pump gas.

I would advise against it but to each there own lol, Im runnin around 9-10 psi on my motor and have  a 14:1 ratio but it adds up in gas fast lol

Yea I was planning on keeping it 3-5Lbs. And I could change the pistons on a rainy day. But the heads are from another motor. The heads are ported, flowed, and cnc'd. Harder valve seats. Roller lifters, springs matched to the valve train.

[Jthomas]

And I know what you mean when running 10lbs WFO = empty tanks

But I chose a blower so I have that instant off the line power and boost. And hell, to me it looks cooler than with the scoop and belts through the hood.

[OHEARN.2012]

you could run a blower but wouldnt go over 3 psi that would bring your compression ratio up to 14:1 but then you need to run racing fuel like 110-114 octane. you dont wanna go over 12:1 on high octane pump gas.

I would advise against it but to each there own lol, Im runnin around 9-10 psi on my motor and have  a 14:1 ratio but it adds up in gas fast lol

Yea I was planning on keeping it 3-5Lbs. And I could change the pistons on a rainy day. But the heads are from another motor. The heads are ported, flowed, and cnc'd. Harder valve seats. Roller lifters, springs matched to the valve train.

u shud be boggin on a rainy day

[OHEARN.2012]

yea but if your going to save up to build the 700r4 why not save up and buy a 400th??

Idk, that's what I'm on the fence about.

save up run the 700r4 for now and when u can buy a 400th buy it and build it to hold up to your motor problem solved

[Jthomas]

I'm just gunna get rid of the 700r4. Get a th400. And build the 400 up. Anyone wanna trade? Sell? Buy?

[xjs3667]

if you were closer I would probably buy that there r4 from ya

[Jthomas]

if you were closer I would probably buy that there r4 from ya

Yea, and I'm sure I would get raped on the shipping. (odd sized box, and heavy as hell)