oh and like i have said the motor is already build been driven, about 2000 miles, i just wanted more power
and i was trying to keep the 326 because i get about 25 mpg now, and would be willing to lose a little to gain more power
and again yes I realize that the 326 is a huge limiting factor in performance, i was just hoping there was more there
yes i would love to swap up to a 400, but money is limited and will continue to be for a while, with a cam swap, it could be a little cheaper
i wanted a thinner head gasket to raise the CR to 9.75:1 or somewhere around there, NOT try and make my heads 52cc and use that thinner head gasket to make my CR 11.3:1, never said anything even like that
i never said anything about wanting to mill the heads, or trying to make a 326 HO
and i guess i will have to call bulter or someone tomorrow
I have a 67 326 that I had rebuilt. I went 30 over and had the heads ported a bit and went with an R V cam. If you like I can get you more info on specs,etc. The heads and block were decked. I went with forged pistons and a 4 brl. I was told this is a good combo. My car is #'s matching and I wanted to keep it that way. Long live the 326.
bastero, Replicate the 326 HO and put a big carb on it. With the 3:55 rear, you will have plenty of fun. You start getting into big cams and strange upper end geometry you will have problems. Keep it simple. You must have just wanted a fun car if you choose the 326 in the first place. Keep it fun!
Go with Banshee's suggestion and FBody's second. Build as close to the 326 HO specs as you can. I know the guy who built Jimbo's motor had a lot of input in the cam selection because he knows his stuff. That's four opinions - five, actually. All of them the same. How many more do you need?
204/214 @.050", .420"/.443" lift, 110 LSA. Melling MTP-1. Good mid-range in this size engine but still very civilized, good gas mileage, slight lump at an idle.
Do you have the 219/228 cam in right now? If not what do you have? What don't you like about it, and what do you want instead? Anything can be made to run, but you don't want to be swapping cams in a few months or adding a vacuum pump.
tohcan- yes i have that 219/228 cam in right now i was looking for a little more power. i called comp cams, and they suggested i go with XE274H (230/236 @ 50) so then i came here to ask your opinions
More airflow = more power. Sounds like it's time to get into the heads. Any porting at this point? What do you have for intake manifold, exhaust system, carb, how well tuned (pretty good to get 25 mpg with that cam).
Yes, you can step up to a bigger cam but make sure you take care of any other areas that may be limiting your power. As Banshee says, the engine has to work as a package. Adding compression will help as you suspect, and will also gain back some of the fuel economy loss from the bigger cam.
The advice given above regarding a conservative package is applicable to 99% of the cases out there. Of course, there is always 1 in every crowd!
