Nova

[63chevystepside]

The 233/241 right? That's a good sized cam, good thing you got some big breathing heads. What's your compression?

241-heads aren't going to flow alot they arent anything special just a better casting than i had.They are 482-1970-its either 9 to 1 or 10 to 1---not sure i called the piston place and they said they are 10.250 to 1 but that depends on what heads. And the 76cc i had on it before were ok just crappy 624 weak castings. I don't wanna get a 64 cc head. Trying to pick out the cam to match what i got. springs...

 

[svensk]

Do you run any nitrous?

 

[63chevystepside]

Do you run any nitrous?

No-just motor alone.

 

[svensk]

As they say, "It will shit and git!"

 

[63chevystepside]

As they say, "It will shit and git!"

All this is going in my 78nova-so ya know gotta have it decent.Im trying to make it a 6500rpm engine but just take it to 6-6200 for longtivity. I came across some where those fm vs739r valve springs are good up to a 550 lift---i don't wanna put in a 520 lift cam and it turns out the springs are maxed out at 500lift. Any input?

 

[63chevystepside]

As they say, "It will shit and git!"

o the heads are 493 not 482-my bad.

 

[svensk]

My knowledge of SBC stuff is limited. I guess I'd run 986 or 987 springs after looking at the VS739R. Some people are saying the vs739r is overrated and should really be a .480 max.

 

[63chevystepside]

My knowledge of SBC stuff is limited. I guess I'd run 986 or 987 springs after looking at the VS739R. Some people are saying the vs739r is overrated and should really be a .480 max.

Yea i came across that two-but there is two springs one is 80lbs seat and the other 105lbs seat-i got the 105lb seati keep looking...

 

[svensk]

You think 105# seat load is going to be enough? The 986 double springs are rated .540 max w/ 132lbs. But they cost a lot more it looks like.

 

[63chevystepside]

You think 105# seat load is going to be enough? The 986 double springs are rated .540 max w/ 132lbs. But they cost a lot more it looks like.

Ok well your right its better to be safe than sorry. I can get a diffrent cam-thinking the com 280. I can get a regrind cam two its a 288duration-480 lift-110 lobe-2200-6200rpm...what ya think? The regrind cam is like 234 @50. I came across a forum guy said 500 lift max for them. Mine does have the damper.