Spark Plug Angle

[Steve_D]

I believe the ASE engines use AFR cylinder heads.
These can have angled or straight spark plugs.
A thread on chevytalk forum talks of a problem finding exhaust manifolds that don't foul the plugs.
Does anyone know if this is an issue with the factory manifolds?
Many thanks
Steve

[GTRCLIVE]

No. The yanks have problems because the primary pipes go down, the factory headers fitt both patterns.

[Steve_D]

Thanks Clive
Now all I have to do is decide which I want.
Steve

[ultimaandy]

Steve

AS engines don't all use AFR heads a lot of them use Eldebrock RPM heads which are good for 400+bhp.

I think its only the 500+bhp engines that use the AFR heads. However if you are building your own you need to carfully match your heads to the cam etc.

My spare engine is very similar spec to my AS engine only real diference is the cam and heads (Eld RPM on spare, AFR on AS one) but this will mean about 50bhp less. However just ungrading either component individually will probably reduce the power.

Thinking about it I'm probably teaching you to suck eggs, I'll happily show you the specs of my engine next time we meet to help you along.

>> Edited by ultimaandy on Sunday 2nd March 22:17

[Steve_D]

Andy
If you want to give me the specs of either/both the engines I will run them on Desktop Dyno 2000 and see how they compare for power.
I'm using DD2000 to choose all the parts for my build. The most difficult bit, as you say, is the cam.
Steve

P.S. Can do the same for anyone else who wants to know how their engine spec looks.

[Steve_D]

Just found out how to post the numbers from DD2000.
This is how my engine will perform, I hope.
RPM***HP***Torque
2000 162.41 426.33
2500 211.35 443.83
3000 260.00 455.00
3500 319.26 478.88
4000 377.23 495.11
4500 429.63 501.23
5000 472.17 495.78
5500 494.68 472.20
6000 498.41 436.11
6500 483.85 390.80
7000 458.85 344.13

Steve


>> Edited by Steve_D on Monday 3rd March 19:52