It's great to hear this good stuff for the GM/Crane hardware. I had a
230/240 cam in my 68 GTO and loved it, and that is with 400 cubes.
It would have been nice to stick in an 847 but I need a daily driver for
rush hour traffic, hence the Crane 227.

Thanks for the info atljar. I still enjoy watching your 11 second
video.

 

Dang, lost the record...at least you had it for quite a while Atljar! I agree on revving these things high. Mine peaked at 5800, and I figured a 6200 rev limit would be suffice. No sir E. That thing wants to REV. It only went 12.8 @ 110 with a 2.0 60' shifting at 6000. I raced a guy (I know its not a timeslip - haven't made it back yet) who runs around 110 and pulled about a car on him shifting at 6000. Raced again, shifting around 6700 and pulled an INSANE amount. I think I might slick it up and pray the rear doesn't go at the local F/Y body shootout. Pray for the measly 10 bolt!

 

were can i pick up a full valve train kit w/ the gm 847 cam????

 

My friend Mike put down 369RWHP 366RWTQ with a Comp 306 and stock longblock. Full bolt-on car with Hooker LTs and 4" Exhaust. Power went through a M6, aluminum driveshaft and 12-bolt with a spool. He recently added an electric water pump and a Holley 58mm, but hasn't been back on the dyno so the numbers should be a bit higher.

Dave

 

stock heads?

 

I'd like to see that dyno sheet if you can get a hold of it, Dave. Are those SAE numbers?

I made 371 Standard....

 

is anyone runnin the 847 on 3/8's studs with their rr's?

 

Yes

 

We specifically asked for SAE. I will see if I can get a copy of his dyno sheet to scan.

Below is a video of his car.

Video

Dave

 

I would think so. My custom cam is quite similar to an 847, and considering you got your heads from Joe right around the same time as me, I'd say you're going to be pretty well off.

What valve springs are you going to be running?

 

Update: The Car spun the mains today, blah.

 

My 847 car should be going for a dyno tune this weekend.

 

man, you guys are making me jealous...im runing 11:1 comp, xe 236 with ported heads, and made 313rwhp at 5300 ...my stock lifters started collapsing (at least thats what ive been told is happening with the xe236's aggresive ramp angles) i still wanted more than 313 though...also has long tubes, true duals, dynaspark dist, 28# injectors, 1.6 RR, all those goodies...still through stock 48mm TB though...custom tuning, showing knock right at 5300 where it lost 90 rwhp before 5400 ...i pulled timing all the way to 28* total advance, and it was still pulling timing...im putting in the new lifters this week though, so we will see what happens

a/f was no lower than 11.5 and no higher than 13 the whole run

 

you dont mean main bearings? NOOOOO im sorry man, i feel for ya, mine spun #8 rod in november, thats why it got the rebuild

 

New rpms + new power + old parts = tap tap tap tap tap tap tap tap

Been there, sucks.