Yellow Bullet Forums banner

1 - 20 of 24 Posts

·
Registered
Joined
·
1,929 Posts
4.90ish. Maybe 5.0 My 603 was a 12 deg profiler headed motor in my rail went 4.50s in dead heat at 1980 lbs on a lazy tune. Went a best of 4.41 before I turned it back.
 

·
Registered
Joined
·
4,278 Posts
Not very familiar with the Rapture heads. Are these Reher/Morrison priority cast just for them? What are the difference from other similar heads that helps them perform well?
 

·
Registered
Joined
·
1,929 Posts
The 12* Raptors are basically a copy of the Profiler 12 degree heads. I believe Darren at Reher Morrison developed both. Someone correct me if I'm wrong.
 

·
Registered
Joined
·
817 Posts
The 12 deg. Raptor 2 head is Reher-Morrison's CNC version of the 12 deg. Profiler Hitman head.

Reher-Morrison 12º Raptor 2 Cylinder Head. R-M's version is a pretty significant improvement over the as cast head. At least on paper.

Assuming the engine makes ~1200 HP


Could go as fast as 7.43 - 1/4 or low 4.70's - 1/8th in ideal weather in a 2500 lb door car. Add to that for your DA or if less HP.

Jason G.
 

·
Registered
Joined
·
1,177 Posts
Our reworked Raptor 2 headed 632 N/A engine package has gone 4.19 @ 168 @ 2375 race weight. ( Liberty 5 speed, 9000 rpm ) We updated the ports, valves and valve job to our specs. Our Heads up 632 package as well as a Top Sportsman eng we offer.

www.3VPerformance.com
980-222-7230
75034
 

·
Registered
Joined
·
671 Posts
We have local guy we help that runs 4.40s and 6.80s at 2500 ,5 speed lenco.It has same basic parts except cam as from rm but lots of rework.
 

·
Registered
Joined
·
671 Posts
Good friend of mine runs a 2500# door car, N/A 565/Glide, dynoed 1000 at the crank, runs [email protected] Which is what, approx 8.40/165 @ 1320? So yep, 5.0's are within reason with your deal.
The parachute out at the 330? We have sbc that run that at 3200 lbs.
 

·
Registered
Joined
·
671 Posts
I could show you dyno sheets ,could show you video.You would still say how do I know it doesnt have nitrous? So why waste my time? It's in my sig.Believe it or not I dont give a fuck any more than what you claim your car runs.At end of day dont make a shit.
 

·
Registered
Joined
·
5,153 Posts
I usually agree with what you say too :).
I'm thinking the car is lighter than 3200 if so. Tried to edit original post.
 
1 - 20 of 24 Posts
Top