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SBC 15 Degree intake

8K views 10 replies 5 participants last post by  Vinny V 
#1 ·
Please bear with me, I am trying to learn...

What makes a 15-18 degree intakes different than a 23 degree intake?

Is the intake gasket surface angle different? Runner location? Bolt pattern?:confused:

Thanks for informing the stupid.....:smt100
 
#2 ·
the heads are "layed" over more the closer the valve angle gets to zero...so
the intake you use for a 23 degree head would need approximately a 1" spacer for a 10 degree head.
 
#3 ·
The intake face angle on a 15* or 18* they are the same a 23* is different like Butch says, but a 18X from brodix uses the same as a 23* the spacer would have to be a wedge shape to fit a 23* to a 18*
 
#10 ·
I have put that intake on many 5 deg face heads.It can be a job but like i mentioned earlier you have to cut intake face pad vertically and get it to 10 deg then i cut spacers with laser to raise the manifold to port location.You have to make end pieces to fit between intake and block and use a adjustable collar dizzy but it can be done.Back in the day there wasnt much choice for intakes like now.Just something for you to think about.
 
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