Re: 360 performance
[Re: patrick]
#527517
11/17/09 09:37 AM
11/17/09 09:37 AM
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Joined: May 2003
Posts: 15,487 Florida
scratchnfotraction
I Live Here
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I Live Here
Joined: May 2003
Posts: 15,487
Florida
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well back when I turned 16,my mom gave me an ex highway patrol car 71 FuryI 4-door with a SB 360/727 with a 150 speedo cant get bigger than that it was slow out the hole but from 55 to 130 it was a beast and I out ran a lot of BB on the 5 mile run.. a sb will just need a diff set up to do the same thing a BB does IMHO example...a 318 does what a 360 will do with a lower gear 360 with a 3.23 a 318 with 3.91 360 with a 3.91 318 with a 4.30 torque rules and HP is nothing with out it a 360 got torque a 318 does not dont let them bother you Boss ride is the man for useing his as a daily driver and seems to be doing just fine..nice burn out pics by the way trust me..I have done more with less than most do with more it needs to be a well thought out combo and you need to build it to do what you plan on doing a race engine is for race a street engine is just that..works best in the traffic my combo 360 headed 318 cop engine never been apart 600 carb LD4B intake headers duel 2.5 pipes lunati 60710 roller cam 258/264 207/213 .485/.485 A999 stock /6 high stall lock up tc 8 3/4 with 3.23 sg 85 stepside truck knocks down 18-19 mpgs and merges with attude,runs trip didgets on highway drop some top end with 3.91sg but its out the hole faster 80 miles a day for a daily driver I get asked all the time is that a 360? be surprized what a SB will duz when you buzz the rpms up some I run what I brung its not a race truck,so I will see you on the street in traffic,buzz a race engine at 4800 rpms for 30 mins and see if it needs oil in the next town
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Re: 360 performance
[Re: HotRodDave]
#527521
11/17/09 09:56 PM
11/17/09 09:56 PM
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Joined: Jan 2003
Posts: 1,978 Southaven, MS
BossRide
top fuel
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top fuel
Joined: Jan 2003
Posts: 1,978
Southaven, MS
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I have an Offy 360 on mine with a 600 Holley with vacuum secondaries...
The Blue Goose
My instagram: Bossride
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Re: 360 performance
[Re: HotRodDave]
#527522
11/17/09 11:11 PM
11/17/09 11:11 PM
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Joined: Jan 2003
Posts: 502 St Louis, Missouri
Runnin74
mopar
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mopar
Joined: Jan 2003
Posts: 502
St Louis, Missouri
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Quote:
The holley street dominator is a good low RPM manifold NOT a high RPM piece at all. The runners are very small and long and the plenum is not real big either.
My experience with this combination in this car (street hemi grind cam, Street Dominator, and Holley DP650 mech secondaries) has been the opposite. It has difficulty in the lower RPMS and pulls like gangbusters from about 2500 to 2800 all the way through 5500. The Street Dominator does have small runners. Definitely smaller than the ports on the 360 heads. The plenum is short although sized for a spread bore carb. It is a fairly open though short plenum. In my experience the smaller primary side got fairly well fuel washed while the secondary side tended to accumulate some carbon. Perhaps I never got it jetted/adjusted correctly. As I said earlier it was an old school build. I believe there are better cam, intake, and carb combinations available now.
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Re: 360 performance
[Re: BBCoronet]
#527524
11/18/09 12:30 AM
11/18/09 12:30 AM
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Joined: Jan 2003
Posts: 1,978 Southaven, MS
BossRide
top fuel
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top fuel
Joined: Jan 2003
Posts: 1,978
Southaven, MS
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Mine was built without a lot of radical compression, 9 or just under, I think, and if I remember correctly my cam is a few notches above an RV grind. I told him what it was going in and what I wanted to use it for... long distance driving, some light towing, etc...
I believe this is what I got, and it was an Elgin cam:
936P Intake, exhaust lift: .443/.465 280/290-advertised duration Intake and exhaust duration @ 50: 214/224 61º overlap 107º lobe center Stock valves, a good valve job and adjustable pushrods.
In my car, it takes a minute to wake up with the tall rear gear, but it roars pretty good when spooled up.
The Blue Goose
My instagram: Bossride
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Re: 360 performance
[Re: patrick]
#527527
11/18/09 09:10 AM
11/18/09 09:10 AM
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Joined: May 2003
Posts: 15,487 Florida
scratchnfotraction
I Live Here
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I Live Here
Joined: May 2003
Posts: 15,487
Florida
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holley street dom and a q-jet with the 2nd dary spring tighten up will get rid of the bog I ran one with good results and no bog all in how you tune it IMHO I have run the SD on some stock 318 and never had a prob with it boging its for a 2-v to 4- swap from the get go,so holley said,70 HP with a 2-v cam I think it will be the best bang for the buck with a stock 2-v cam..I know mine was with a low CR high lift and short dur are a big plus.. plenty of newer cams out there just for the lopo engines sucxh as a hughes whiplash early intake close for building cyl pressure not starting a pizzing match,but all I have every run is close to stock used junk,tuned right to get the most out of it does it out run every thing?..no does it surprize some when it does? most deffenetly runwhatyoubrung I am in to the fun of it..dont care if its slow as long as it showboats
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Re: 360 performance
[Re: scratchnfotraction]
#527528
11/18/09 02:15 PM
11/18/09 02:15 PM
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Joined: Oct 2009
Posts: 118 Sarasota, Fl
siggie30
member
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member
Joined: Oct 2009
Posts: 118
Sarasota, Fl
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I am by no means an expert on engines, but it seems to me that engineers put these engines in larger vehicles (like full size, extended cab, long bed pickups) and do not worry about it. I myself have chosen the magnum over the older 360, for reason of newer metal, less abuse, and newer technology (ie. roller lifters, etc.). Since the technology of the 60's and 70's helped pave the way for today's newer technologies, why not use it to your advantage. With the exception of the torque output of big block engines, small block engines can move a proportionately ratioed mass the same way. Also, power adder technology has moved from the racing circuits into main stream enthusiasts, which is lighter and tuneable (unfortunately more things to break eventually).
I don't even have 1/2 lift, but the other 1/2 is nitroused.
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Re: 360 performance
[Re: erick72]
#527530
01/06/10 06:48 AM
01/06/10 06:48 AM
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Joined: Dec 2009
Posts: 1,074 detroit, mi
POS Dakota
super stock
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super stock
Joined: Dec 2009
Posts: 1,074
detroit, mi
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A dakota r/t is a 360, weighs like 4500ish lbs from the factory, but has no problems breaking both tires loose from a stop and was very fun to drive on the street. There are people with these heavy trucks running high 12s and low 13s with relatively mild combos since they need to be friendly with the EFI. Much easier to do with a carbed car since you dont have to worry about the computer liking it. A similar combo in your car will make it haul ass. And you;re damned right it'll do some great burnouts (both tires) without the brakes. invest in a set of decent heads/porting and pick the right cam/stall, and you can make great power with a 360 no doubt. And for pretty cheap.
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Re: 360 performance
[Re: POS Dakota]
#527531
01/06/10 09:04 AM
01/06/10 09:04 AM
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Joined: Nov 2006
Posts: 1,086 Baton Rouge, La.
StandOnIt
super stock
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super stock
Joined: Nov 2006
Posts: 1,086
Baton Rouge, La.
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I threw a 360 together and put in a 73 Dart that I tore up the 340 in. It was a basic 360, a set of iron heads, a comp 292 shelf cam, KB shelf pistons, 904 trans with a 4.10 rear gear. The dart is lighter that your car but it ran 11.70's in the 1/4 mile and ran for years, pump gas motor. Dont let someone talk ya into thinking that the 360's are junk. They are alot of fun and will push that B body just fine. Put it in and drive the wheels off. If ya feel that its too slow for ya, put a little squeeze on it and watch it go....
76' Volare, 5.9 magnum w/Iron heads. New best 10.68 at 123 mph 1/4 mile.
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