quess the hp/send your opinion ...getting dynoed 11-11-09
11-10-2009, 07:09 PM
#1
Senior Member
DYNO OPERATOR
Thread Starter
Join Date: Dec 2004
Location: Chicagoland area
Posts: 472
quess the hp/send your opinion ...getting dynoed 11-11-09
SEND YOUR OPINION
I JUST PUT A 496 BBC TOGETHER
SPECS AR FOLLOWS:
TEAM MAGNUSON BBC
496 CI (4.25 STROKE. 4.310 BORE)
SHORT BLOCK AS FOLLOWS:
GM BLOCK
SCAT CRANK
EAGLE H RODS 6.385
SRP PISTONS W/43 CC DOMES
12.65 TO 1 COMPRESSION
VALVE TRAIN
BULLET ROLLER DEGREED @108
.714 LIFT INT AND EXH
300 DEGREES ADVERTISED DURATION INTAKE
310 EXH
ACTUAL LIFT .695 AT VALVE (PLUS 18 LASH )=.713
COMP ROLLER LIFTERS
COMP GIRDLE
COMP ROCKERS 1.7
VALVE SETS AT 18 COLD 22 HOT
SINGLE DOMINATOR 1050
DART PRO 1 OUT OF BOX
2.30 INT
1.88 EXH
COYLES TIMING GEAR W/ TORRINGTON BEARING AND COVER (ADJ)
QUESS THE HP ?????????
NO CHEATING DO NOT USE THE HP CALCULATORS
I HAVE FOUND THEM TO BE PRETTY CLOSE
LET ME KNOW JEFF
I JUST PUT A 496 BBC TOGETHER
SPECS AR FOLLOWS:
TEAM MAGNUSON BBC
496 CI (4.25 STROKE. 4.310 BORE)
SHORT BLOCK AS FOLLOWS:
GM BLOCK
SCAT CRANK
EAGLE H RODS 6.385
SRP PISTONS W/43 CC DOMES
12.65 TO 1 COMPRESSION
VALVE TRAIN
BULLET ROLLER DEGREED @108
.714 LIFT INT AND EXH
300 DEGREES ADVERTISED DURATION INTAKE
310 EXH
ACTUAL LIFT .695 AT VALVE (PLUS 18 LASH )=.713
COMP ROLLER LIFTERS
COMP GIRDLE
COMP ROCKERS 1.7
VALVE SETS AT 18 COLD 22 HOT
SINGLE DOMINATOR 1050
DART PRO 1 OUT OF BOX
2.30 INT
1.88 EXH
COYLES TIMING GEAR W/ TORRINGTON BEARING AND COVER (ADJ)
QUESS THE HP ?????????
NO CHEATING DO NOT USE THE HP CALCULATORS
I HAVE FOUND THEM TO BE PRETTY CLOSE
LET ME KNOW JEFF
11-10-2009, 08:15 PM
#6
Senior Member
DYNO OPERATOR
Thread Starter
Join Date: Dec 2004
Location: Chicagoland area
Posts: 472
ANOTHER TIP
I THINK THESE HEADS MAYBE A LITTLE TOO BIG FOR JUST A 496 INCH MOTOR
BUT MAYBE A 250 SHOT WOULD WAKE THESE HEADS UP AND GET THEM WORKING A LITTLE BETTER
CANNOT GIVE AWAY SECRETS, BUT THIS MOTOR WILL NOT BE RAN AT THE TRACK TILL 2010.
WE WILL SEE
I THINK THESE HEADS MAYBE A LITTLE TOO BIG FOR JUST A 496 INCH MOTOR
BUT MAYBE A 250 SHOT WOULD WAKE THESE HEADS UP AND GET THEM WORKING A LITTLE BETTER
CANNOT GIVE AWAY SECRETS, BUT THIS MOTOR WILL NOT BE RAN AT THE TRACK TILL 2010.
WE WILL SEE
11-10-2009, 09:43 PM
#7
Senior Member
RACING JUNKIE
Join Date: Jan 2006
Location: La.
Posts: 2,890
You didn't say what manifold, i don't think the heads are too big, if you have a 454R intake and 2 1/8"/2 1/4" headers, we're pushing close to 750Hp with a pump gas 468" with Brodix 2 extra heads.
I'm guessing real close to 800 HP. with right tuning, maybe a little more. I'm buliding a 496" for a customer with Dart 308's steel heads and stacks injection, i'm looking to go more than 800 HP with it.
JMO
Zip.
I'm guessing real close to 800 HP. with right tuning, maybe a little more. I'm buliding a 496" for a customer with Dart 308's steel heads and stacks injection, i'm looking to go more than 800 HP with it.
JMO
Zip.
