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Estimate my 347's HP

  • Thread starter Thread starter thekid760
  • Start date Start date Aug 16, 2007
T

thekid760

New Member
Sep 10, 2006
114
0
0
Aug 16, 2007
#1
  • Aug 16, 2007
  • #1
I also posted this in the 5.0 tech section.

My engine setup:
347 kit w/ 5.4 rods, cast steel crank, and Speed Pro hyperutectic pistons.
1978 302 non roller block bored .030 over and clearanced for crank
Stock 78 heads rebuild, and mildly ported by me
1.6 roller rockers
RPM air gap intake
Holly 650 DP carb with mechanical secondaries
Isky solid mech cam Part#: 381358 278 adv duration 244 @.050 .512 lift 108 degree centerline
Hi volume oil pump
stock pan
1 5/8 long tube ceramic coated headers
MSD pro billet distributor
6al ignition box


What would you estimate my setup would make?
This will eventually be paired to an AOD w/ 3000rpm stall and 3.73 rear gears.

Any comments or suggestions?
 

302 coupe

Founding Member
Mar 2, 2000
1,952
3
36
Macon, Ga.
Aug 17, 2007
#2
  • Aug 17, 2007
  • #2
might get 320-330 hp from it IMO, all that duration is gonna move the powerband into the upper end of the rpm range where the heads will really be hurting you. I dunno.....seems an odd combination of heads and cam, especially on a stroker.
 

brianj5600

Active Member
Sep 19, 2003
1,964
2
39
Middle TN
Aug 17, 2007
#3
  • Aug 17, 2007
  • #3
http://airflowresearch.com/articles/ultimate/Group3/Part6/A-P5.htm You did not list CR? I think it should make 350 hp at least. Towards the bottom of the page is proof that stock iron heads are capable of decent power.
 
T

thekid760

New Member
Sep 10, 2006
114
0
0
Aug 17, 2007
#4
  • Aug 17, 2007
  • #4
10.7:1 CR
 

Cyclone

Founding Member
Aug 17, 2002
124
0
0
Chatsworth, California
Aug 21, 2007
#5
  • Aug 21, 2007
  • #5
365HP at the rear wheels, about
 
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