Speedlink1973
Well-Known Member
Hi,
Just wanted to say Thanks for all the great information on 496ci big blocks.
Im knee deep into a build I should've did myself in the first place.
.015 thrust bearing end play on a motor with 2000k on it!! and had only see an 1/8 mile 5 times and 1/4 mile 4 times.
Bearing looks good 1.810 in three places, crankshaft between the thrust surfaces is 1.824
Not happy, when this started out as a head and Cam swap.
So new 4340 eagle Crank
ACL H series bearings,
AFR 290cc magnum oval port 112cc chamber heads, Spring pressure @ 145lbs at the seat 380lbs on the nose (per Howard's)
New Howard's hyd roller cam
RPM AIR GAP dual plane intake match ported, cam spec. 635/640 243 237 @ .05 LSA 112 and I'm bringing it in
At 108
Compression 10.93 :1
Dynamic compression 7.866:1
Quench. 043
FITECH meanstreet 800hp throttle body fuel injection,
20cc wiseco dome pistons
Dart Big M sportsman block
4.310 bore 4.25 stroker
4340 scat rods 6.385
Howard's stud girdles
My Virtual Dyno
Has me at 700.43hp @6600
And torque in at 612@ 4500
2"dia long tube Ceramic coating scavenger headder from flow master. And to top it off a 3" exhaust system from pypeps
Pro Race that flows 701cfm
I think it will be more like 670ish
Which is what I was shooting for in my 68 Camaro, it has a Ford 9" 3.73 gear all strange components , A built transmission 4l80e manual shift Valve body with a 2600 stall converter 10"drag slicks caltrack bars and a mono leaf spring , Calvert 9 way adjustable shock,
Hopefully high 10's
All info was based on 1250 feet above sea level.
The virtual dyno has me retarding the cam timing 4 deg which will bring me in at 108 correct?
Thoughts anyone
Or am I smoking crack
Just wanted to say Thanks for all the great information on 496ci big blocks.
Im knee deep into a build I should've did myself in the first place.
.015 thrust bearing end play on a motor with 2000k on it!! and had only see an 1/8 mile 5 times and 1/4 mile 4 times.
Bearing looks good 1.810 in three places, crankshaft between the thrust surfaces is 1.824
Not happy, when this started out as a head and Cam swap.
So new 4340 eagle Crank
ACL H series bearings,
AFR 290cc magnum oval port 112cc chamber heads, Spring pressure @ 145lbs at the seat 380lbs on the nose (per Howard's)
New Howard's hyd roller cam
RPM AIR GAP dual plane intake match ported, cam spec. 635/640 243 237 @ .05 LSA 112 and I'm bringing it in
At 108
Compression 10.93 :1
Dynamic compression 7.866:1
Quench. 043
FITECH meanstreet 800hp throttle body fuel injection,
20cc wiseco dome pistons
Dart Big M sportsman block
4.310 bore 4.25 stroker
4340 scat rods 6.385
Howard's stud girdles
My Virtual Dyno
Has me at 700.43hp @6600
And torque in at 612@ 4500
2"dia long tube Ceramic coating scavenger headder from flow master. And to top it off a 3" exhaust system from pypeps
Pro Race that flows 701cfm
I think it will be more like 670ish
Which is what I was shooting for in my 68 Camaro, it has a Ford 9" 3.73 gear all strange components , A built transmission 4l80e manual shift Valve body with a 2600 stall converter 10"drag slicks caltrack bars and a mono leaf spring , Calvert 9 way adjustable shock,
Hopefully high 10's
All info was based on 1250 feet above sea level.
The virtual dyno has me retarding the cam timing 4 deg which will bring me in at 108 correct?
Thoughts anyone
Or am I smoking crack