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440 500 hp

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cuda4291

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Hey guys new to site but long time Mopar fanatic. I finally just bought my dream car , being delivered today actually . It's nothing special just the run of the mill 69 RR hardtop. It was a 383 column shift of course but it cane with a/c lol. I have had quite a few over the years even one four speed 69 rr 383 I let go and now I finally got one back . It's in awesome shape has original quarters and is in epoxy primer . Here is my question on an engine combo . I want a street strip car no doubt no trailer queen . I know these cars are not light but mine will be full bodied maybe a six pack hood . I have a 70 440 motor steel crank . My goal is to have car running 7.50's all day which should be obtainable no problem but don't wanna break the the bank. Obviously a stock well balanced bottom is first and Sunday's tray . As far as piston I'm thinking a set of Kb at zero deck with a set of nice aluminum ones like mabey the eddies or sometime similar . Maybe use the air gap intake and a 750 or 850 carb. Nice set of headers and a stall depending on cam. I wanna run 3.55 gears I know it isn't a lot if gear but car will see a lot of street time. I'm prolly gonna drive care there and put my slicks on at track or use some dot slicks. What do you guys think about my combo and do I need aluminum heads or get some good flowing cast ones. I know I can run higher compression with the aluminum and save a lot of weight but money isn't falling off trees for me right now. Share thoughts or similar combo and 1/8 mile et
 
500 hp out of a 440 is easy but you said: "My goal is to have car running 7.50's all day"
I don't want to Be a downer but that's a tall order for a low budget(Mopar parts aren't cheep).How much do you have to spend? I've got just over 7g's into my motor and thats with me building it and I'd never be able to run 7.50's. Plus I think if your car is built to run 7.50's it's more of a track car and less of a street car.
There are guy's on here that know way more about this than me and I'm sure they will add their 2 cents but the long and short of it is, if it was cheep and easy to go fast every one would be doing it lol.
 
7.50s in the 1/8 mile are easy money. My 64 Fury runs 6.70s with a stock bore stock stroke 440 with 915 iron heads. That's leaving it in drive and leaving off the footbrake at 2900. Car is all original steel, full interior. Your 440 will like the 850 better than the 750 most likely, and with aluminum heads I would say you're well on your way. Your biggest challenge is going to be that gear, I think. I run a 4.30 in my Fury, but it's only a weekend cruiser, no long trips or anything like that. The 3.55 will definitely slow it down some, but I think you will still be close.
 
Any idea of the quickest run possible with a suregrip 3.55-?
 
Lol

1/4 or 1/8 mile times?


Come guys obviously 1/8 mile 1/4 miles running 7.5 street doesn't even make since . Lol and as far as the guy who have 7 grand in a motor and can't run 7.5 that's sad. My buddy has a heavy challenger with a 509 cam stock heads with headers and stall and would run 7.8 all day. That's a low low budget 440
 
Whatttttt

500 hp out of a 440 is easy but you said: "My goal is to have car running 7.50's all day"
I don't want to Be a downer but that's a tall order for a low budget(Mopar parts aren't cheep).How much do you have to spend? I've got just over 7g's into my motor and thats with me building it and I'd never be able to run 7.50's. Plus I think if your car is built to run 7.50's it's more of a track car and less of a street car.
There are guy's on here that know way more about this than me and I'm sure they will add their 2 cents but the long and short of it is, if it was cheep and easy to go fast every one would be doing it lol.

Doesnt sound like you have the right combo to me. With 500 ponies you should run around mid 7's no prob even with 3.55 gears. My last build was stock 400 heads bigger valves no port work with a .528 lift cam 9 to 1 compression stock stall in a full bodied 70 challenger and it ran 8.0 . My next build will be much better and rr is a little lighter may bump it up to 3.91 not sure.
 
doesnt sound like you have the right combo to me. With 500 ponies you should run around mid 7's no prob even with 3.55 gears. My last build was stock 400 heads bigger valves no port work with a .528 lift cam 9 to 1 compression stock stall in a full bodied 70 challenger and it ran 8.0 . My next build will be much better and rr is a little lighter may bump it up to 3.91 not sure.

1/8 mile I could but we thought you were talking about the 1/4 mile,Big differance.And I don't have 3.55 gears I have a Richmond 4.3 gear. My comp is 11.7:1 And I'll be over 500hp lol I'll let you know how it does when its done.
 
Lol ya it's an 1/8 mile figure people would know when you say a street car at 7.5 et . Don't think there are to many 7.5 1/8 cars out there. Yours sounds good but I want lower compression for 93 octane prolly 10.5 with aluminum heads
 
Lol ya it's an 1/8 mile figure people would know when you say a street car at 7.5 et . Don't think there are to many 7.5 1/8 cars out there. Yours sounds good but I want lower compression for 93 octane prolly 10.5 with aluminum heads

You have to consider that most people think in terms of 1/4 miles. And with the type of questions newbies generally ask (no offense) you can gauge the reaction. Not to mention you posted this in the car for sale section....
 
My low buck 440 has kb 184 pistons chrome moly rings, clevite bearings,speed pro high volume oil pump,eddy performer rpm intake ,and valve springs,452 cast heads,mp 509 cam,headers,msd, tremec 5spd, 4.10 gears. The kb 184 pistons with the 452 heads make about 10.75 to 1 compression. Dont know what it will run or the h.p. but I cn tell ya from driving it a little bit in the last couple weeks it works well and pulls hard,and I put it all together for not alot of dough.
 
For what its worth & for reference, my 69 Roadrunner runs easy 7.30's on pump premium, through the mufflers, with a relatively mild 440. I am however, running a Weiand 177 blower. You might consider some kind of power adder. I picked up the setup on Ebay from a salvage company (the kit was apparently used but was never installed on a car). The kit was originally for a BB Chevy, but I fabbed a manifold by modifying an old Offy dual quad piece I had & making an adapter plate. I think the kit originally retailed for about $2200, I paid about $1700, & resold the Chevy manifold for around $250. I'm running a solid lifter cam, 516 heads w/ bigger valves & a little bowl work, dished pistons (~8:1 comp), 4.56 gears, & a 4spd. I've been experimenting w/ different pulley ratios but still am running light boost, maybe around 4psi (I'm not sure - I'm usually busy looking at the shift light & forget to look at the boost gauge). The carb is also not really right for the application. Its a 750 Holley, & lays down a little bit off line (its a vacuum secondary), so at least an 850 dbl pumper is in the plans. Don't know if any of this helps - just thought I'd share.
Good luck.
 
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