Nova

[svensk]

That regrind cam you mentioned might be nice. Honestly, it might be more reliable setup. Probably isn't too much power difference between them.

 

[63chevystepside]

That regrind cam you mentioned might be nice. Honestly, it might be more reliable setup. Probably isn't too much power difference between them.

I have that regrind cam i mentioned in my 63. It does pretty good. I run it with ported vacum off the intake with 16 intial and a cuve kit in dist. You think i ought to get the better style lifters? or stock lifters do? I heard they good up to 6000-6500rpm. Also was thinking maybe to much duration on the cam might not be good piston may come up to high and kiss a valve in higher rpms... I like the regrind 288 cam.

 

[svensk]

The specs on the GM look decent. I guess I didn't know, but people really like them over replacements like the comp. I come from the LS world where the GM ones are Chinese made crap unless you run LS7 ones hah.

 

[63chevystepside]

The specs on the GM look decent. I guess I didn't know, but people really like them over replacements like the comp. I come from the LS world where the GM ones are Chinese made crap unless you run LS7 ones hah.

Are you saying people prefer the stock oem lifters over comps? You running the LS7?

 

[Black02Silverado]

They sound like the ticket!

 

[PenguinLTZ]

What size chambers on those 400 heads? 76?

76cc---im double checking the springs he put on-said they are z28 and part number is VS739R-i thought they can handle up to a 550 lift. Not sure...

The heads are nothing special-real ol school. The engine is a 4 bolt block with 10.250 to 1 flat top 4 releif valves-engine is balanced.Nodular crank. Not sure if it be 10 to 1 or 9 to 1-i know it depends on the heads-the old heads im replacing where the 624 76cc-so i don't know which cc head that would give the 10 to 1 so i went back with 76cc and a better casting head. Trying to double check on those valve springs max lift. Anyone know? its about a 80 model block.

You will be lucky to get 9:1 with flat top pistons. You will have to run a dome piston. I have run these heads on 3 different engines.

 

[66nova]

Can't wait to hear it run

 

[OldCracker29]

Like Robert said, can't wait.

 

[63chevystepside]

Thanks guys-im ready to hear it run.Iv got alittle problem picking out the cam-can you guys help me chose? Im leaning towards a comp 280 reason why is i can get some better lifters than stock with it in a kit-i think. My springs are the LT1 z28 #"vs 739R"-they have 105lb seat-Ican get a regrind cam thats the same as the comps but with a 288duration.110 lobe on both and 480lift-help me out guys..what would you do?o and the regrind cam has a 6200 range vs the comp280-6000rpm.