Re: 350 - 270 Combo Horsepower
 

Yes that's what I mean. If I remember right Cal Method ran that engine in a 71 Camaro years ago.He is one of best out here at making one run and changed for a reason. If you look at the class guide you can run 0/sa with a 350/270 @40 lbs lighter than you have to weigh in K/sa with a 402/300/315. I am not cutting your combo because anyone that can run under the index impresses me and that's not easy with anything. If you want to stay in K/sa you can make your car a Nomad 2 seat wagon @585 lbs.lighter than the 402. Its not going to be easy with any engine,but I know I would rather have the 350. Good luck. Rick.

Re: 350 - 270 Combo Horsepower
 

I think the main problem with the 402 in our 71 wagon is the intake manifold. Our current engine builder said the manifold is the limiting factor for making good power with that engine. I would love to stay in K/SA (because I have 2 engines and parts to boot) but, I also want to be somewhat competetive within my own class. Currently I am not anywhere near what other K stockers are running. The car itself is a good car hooks good, drives straight, and is an easy car to drive. I'd would like to keep it even if I have to go to a different engine combo.

Re: 350 - 270 Combo Horsepower
 

(1970) 350, 2bbl, R/SA Not much more weight .
Not many heads up runs that you couldn't handle in Div 3

K/SA is a bad place to be if you can't run at least 11.80.

Re: 350 - 270 Combo Horsepower
 

I ran the 402 combo in my 72. Sent several cams through it but it was never really steller. Granted, there is much better camshaft technology today that may make it worth while if you really don't want to change combos. If memeory serves me correct, my best et was 11:27 @ 117.01 in H weight, in great air. The intake is restrictive and very low. The ports actually turn up to the intake ports.

Tim

Re: 350 - 270 Combo Horsepower
 

I ran a 396/325 combo and will be running the same motor in my 65 Impala. I thought it ran pretty good pushing my 4100 lbs 68 Impala to 11.70's . Checking out the specs compared to the 402/315 they are pretty close except I run 290 heads which have a little more intake port volume. Cam intake lift same at .398 but more for 402 on exhaust at .430 Then I did notice the intake manifold for the 402 really a "low riser" compared to the 396/325 which is a more of a "high riser" design. Makes sense than that manifold is the problem. Just wanted to throw my thoughts in.

Will Lamprecht

Re: 350 - 270 Combo Horsepower
 

The 402 isn't even in the same zip code as the 350/270
Approx .25 to .30 slower apples to apples!!!

Re: 350 - 270 Combo Horsepower
 

I agree with you on your statement that if I can't run 11.80 I am in a bad place. Unfortunately, I am almost .4 off of that. That's why we are looking at the 350-270. The 350-270 combo would put us in M/N/O. That is why I am trying to get information as to how much power the 350-270 combo can potentially make to sand help us make a decision if that would be a good combo for our car. As I said, the car itself is not a bad car, it is just the HP - Weight ratio that is lacking merit.

Re: 350 - 270 Combo Horsepower
 

NJK53, I think Jim said it earlier (I agree) that you would need to get 400 plus out of the 350/270 to be competitive. Probably put you in the upper/middle of the pack if everything else is right.

Re: 350 - 270 Combo Horsepower
 

Joe, all I need is someone who has built and/or run the 350-270 combo say the 350-270 combo can make 400 HP plus with this engine.

Re: 350 - 270 Combo Horsepower
 

I managed to make 360 horsepower at the flywheel(mathematically derived, not actually dyno horsepower), with a 68 327/250 horse engine. That one has only 8.5 to 1 compression,has small valve heads, and has a shorter stroke. The 350 should make a lot more torque, has way better ports and valve sizes, and it should be good for over 400 horsepower if it's a good one. The size and weight of a wagon is the biggest thing that has to overcome. It's been done. If the big block is really your preference, Herman Chapman had a 402 Chevelle wagon in Super Stock(no manifold restriction,open season on camshaft selection), maybe that would be an option.