351 Cleveland performance
#1
351 Cleveland performance
I havea 73 351 cleveland 2bbl heads. so far i am planning on boreing it .030 and i have a set of aussie heads, with SS valves, comp cam, retainers, perf vlavesprings, holley 600cfm (will change to higher when i have more money), a edelbrock performer intake what else could i do to make this a respectable performance car, while still making it streetable. Ok now keep in mind its a cleveland, not a windosr or a clevor, but i want a stroker crank, where can i get one. also i was trying to decide, flat top pistons or dished, keep in mind i want streetable performance. Also i was looking for 400+hp do you think that this could have a good combinatio for it?
#2
RE: 351 Cleveland performance
Your aussie heads should bump your CR considerably, so do the math before deciding on style of pistons. Do not exceed 10 to 1, depends on your cam also. 600 cfm may be adequate, also depending on your cam. If you stroke it, 750 would probably be better. Just some generalities for now...
#4
RE: 351 Cleveland performance
Building performance with any motor, but especially a cleveland requires you to do a lot of research upfront before spending a dime.
For instance...
what cam?
performer intake is nothing more than a stock intake made out of aluminim...if you pick the wrong cam...you'll spend the next 20 yrs telling everyone about what a dog those clevelands are [:-]
stroker crank?
takes more to make a stroker than a crank....pistons, wrist pins, rods, and crank....plus...if you make it a stroker you will want the 4v heads because they will flow enough to support what HP number you want to make. The aussie heads are used because the can give you the option to bolt them on a 2v headed motor and get a performance bump....but if you are talking about stroker...IMO...they aren't your choice.
We need to step back and answer these 3 simple questions:
What am I really going to use the car for?
What performance level am I attempting to reach?
What is my budget?
Before moving forward all 3 should be in alignment....for instance....
building an 8k reving motor may be great....and you may be able to afford it...but if its in a street car....you are out of sync.
building a 5k reving car....and you may be able to afford it, but its for a 1/4 mile car...is out of sync.
building a 6k reving car, that you can't afford the parts to build, for your street car....is still out of sync.
With all that said.
You can put down 400 HP to the rear wheels (through an AOD and 9 inch rear) which is well over 500 at the crank with a daily drivable 408 stroker and 4v heads (I know, because I build one); but it costs a little bit and is not something you build a little at a time. It is something you plunge into.
For instance...
what cam?
performer intake is nothing more than a stock intake made out of aluminim...if you pick the wrong cam...you'll spend the next 20 yrs telling everyone about what a dog those clevelands are [:-]
stroker crank?
takes more to make a stroker than a crank....pistons, wrist pins, rods, and crank....plus...if you make it a stroker you will want the 4v heads because they will flow enough to support what HP number you want to make. The aussie heads are used because the can give you the option to bolt them on a 2v headed motor and get a performance bump....but if you are talking about stroker...IMO...they aren't your choice.
We need to step back and answer these 3 simple questions:
What am I really going to use the car for?
What performance level am I attempting to reach?
What is my budget?
Before moving forward all 3 should be in alignment....for instance....
building an 8k reving motor may be great....and you may be able to afford it...but if its in a street car....you are out of sync.
building a 5k reving car....and you may be able to afford it, but its for a 1/4 mile car...is out of sync.
building a 6k reving car, that you can't afford the parts to build, for your street car....is still out of sync.
With all that said.
You can put down 400 HP to the rear wheels (through an AOD and 9 inch rear) which is well over 500 at the crank with a daily drivable 408 stroker and 4v heads (I know, because I build one); but it costs a little bit and is not something you build a little at a time. It is something you plunge into.
#5
RE: 351 Cleveland performance
ok im lookinf ot use the aussie heads, since i already have them, the cam and valve train match the intake, and i woudl like to have 400 rwhp, through a 4 speed and a 9in, i knwo the stroker takes more then a crank, and the flat top, i know they have more performance but i also knwo that raises the comp. ratio but would it be streetable. is it possible to build a stroker with a 2bbl aussie head? im looking for a street car, that will be able to beat the cars in my area. (a really stupid kid thinks he has somthing in his 89, 2k into and he dropped .2 in the 1/4) but this is not going to be a total daily driver. thanks for all the help guys.
#6
RE: 351 Cleveland performance
Yes, you can build a stroker with your heads. A small investment in software like Dyno2000 will go a long way in helping you plan and choose components. Take also into account your elevation. Since I am at 5000 feet, I can get away with more CR per octane, like 10:1 using 91. At sea level, I would probably need 93-95...
#9
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