View original topic: SP vs. DP Heads...
goober Tue Feb 17, 2004 8:09 pm

Leaving head flow aside, are there any mechanical/thermal advantages in using single-port instead dual-port heads, and if so, how significant?

Thank you.

[email protected] Wed Feb 18, 2004 10:29 am

Everyone I have spoken to about this (that knows) say that the SP's are a good choice if you want low end. with the right combo you can make a real powerhouse/stumpuller motor using them. I just finished building a new dual kad 1641cc SP for the baja, but I have yet to install so we will see how it goes as opposed to the 1679 DP I ran before.

I also noticed on my 71' bus (old 1600 sp) that it's just a cool running happy little motor.

goober Wed Feb 18, 2004 9:00 pm

Thanks for the response mdetro.....what are you using for manifolds on your new 1641 SP?

[email protected] Thu Feb 19, 2004 10:43 am

some used single port intakes to fit the kads that I bought off samba awhile back. Right now I think thats the only way to get them. I think you still get AL ones new for baby dells and 34 icts.

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