i recently got a rebuilt 360 from a friend i helped him build the 360 is fully rebuilt with arp rod bolts trw hy po pistons and crane hd rv cam we ported/match and polished the heads to the intake but the intake he put on it was a edelbrock victor 340 which i found out has a power band of 3500 to 8000 rpm with the current mods in the motor i dont see it spinning 8000 rpm or even close. can i retain it with out losing power and what size carb should i use? should i run 1.6 rockers to get more lift? does anyone think it would be safe to run a shot of nitrous on this how its set up currently 150-200 shot? i currently have 2 carbs laying around a 600 cfm edelbrock and a holley 750 double pumper the engine have every part new internally and externally water pump to distributor also i rebuilt the 727. thanks for any help

 

what compression pistons? unless they are around 8 to 1, i definately would NOT recommend running anywhere near a 200 shot. how much do you know about nitrous? what heads are you running? how does the intake have a powerband? i would be willing to bet that the powerband of what engine is much much lower than 8 grand. what cam?

 

it is a stock 8.1 comp flat to trw well ive been researching it for a while and i would like a 2 stage or progressive set up prolly end up with 2 stage for the price im running b 300 hp 360 heads that have stock valve diamater and its been ported and polished bowl work etc edelbrocks specs say its got a powerband of 3000-8000 rpm i assume thats when it starts to build power its tuned for racing hense the victor nameplate i know for a fact i wont be spinning it to 8 grand lol im sure i would throw a bearing or valve float into a piston even though i beleive the 360 in stock from in a non interferance engine(pistons dont come close to the valve even when floated) i am trying to find its specs but i knew when bought it was a heavy duty rv cam so i assume its a street tow type cam not meant for real power gains but every bearing is clevite 77 and my crank is stock steel so i can run up to 550 hp i believe at the crank and i figure unless i change my manifold im only gonna push around 275 maybe 300 hp with my current motor if im lucky hense the nitrous

 

An RV cam is designed for low RPM .The victor will have large short runners for high RPM.A stock 71 + intake will make more power.

 

should i get a cam that gets closer in that rpm range maybe 1500-6500 like the performer rpm from edelbrock

 

i found the spec on my cam its a crane cam powermax hydralyic with 454 480 lift and 216 228 duration a .050 intake exhaust with a 1.5 ratio with a 1.6 id be around 484 512 lift now the recommended power range is 1500 to 5400 with stock springs 6000 id get valve float now i was curious if i install stiffer springs would i still get a float problem above 6500 id like to run 1.6 rockers non roller to get my power range up alittle around maybe 2000 rpm so i can more closely match the cam to intake if i get a cam fit for that manifold ill have to rough a idle and i figure short runner intake may help a nitrous set up from what i understand short runners are good for forced induction while longer are good for n/a cars/trucks is my cam specs i know alot of ? but i want this thing to haul *** im tired of my d-100 laggin around
http://cranecams.com/?show=browsePar...vl=2&prt=5

 

One thing I missed in your first post .All 360 came with a cast crank .So make certan you have a 360 off set balance balancer and a weighted converter or flexplate .If its standard the flywheel will have 3 or 4 large drill holes on the back side .But yes it can easly handle 500+ HP.

 

You would be best off to replace the Victor intake witha Performer RPM intake, it would make a far better and useable match to what you've got and it would be far better for torque. The Victor will make it doggy on the low end and come alive only on the top end where the RPM will bring it alive at just above idle all the way through the top end, even the plain Performer intake would be better for your application than the Victor.

 

im currently looking for a good used performer rpm has this build went over budget has usual. i noticed when running desktop dyno i donno its accuracy that i actually made more power using that manifold using nitrous it states with a 200 shot i plan i actually made to much torque at 2000 rpm claiming 658 at the crank but it also stated i would have 90 percent volumetric efficeny which i was told is what f1 drag cars etc have

 

wait...what?

youre building an 8:1 360, stock bore and stroke, with 1.88/1.60 heads, atiny cam, and youre saying that youre going to make 658lb-ft of torque?