AFR's

[satterfield8]

Hey guys i was wonder how much power diff there will be in the AFR 195 verses my current 041's my current set up is

Motor Size: 383
Juice: n/a
Timing: 12 at crank
Compression: 10:1
Air Induction: 4 inch cowl hood to come
Air Conditioned: n/a
Carburetor: Holley 750 double pumper
Intake: air gap
Heads: 041 heads
Head Extras, milled screw in studs
Camshaft comp 280h 480 480 lift
Cam Retard/Advance: stright up
Headers:sandersone 1 3/4 shorties 3 inch collecters
Exhaust: 2 1/2 inch super 10 mufflers
Transmission: turbo 350
Converter Stall Speed: stalls at 1300
Tranny Extras: shift kit
Rear Gears: 3.73
Posi, spool, or open diff: spool
Tires/Slicks: 275 / 60 /15
Traction Adders: ET streets
Weight: prob 3000

and i was wonder how much off a power increase i would expect with the AFR's with the same set up thanks

[jameskirk1]

Probably 60hp or so (guessing)

[satterfield8]

sounds good to me cant wait to but them on anybody else got guesses

[1fast10]

id say with no other changes to cam and intake about 40-60hp increase. a better cam,headers, for these heads will make close to 100-120hp increase

[satterfield8]

the plans are after we swap the heads is to get a bigger flat tappet cam or maybe go to a roller to get a little more potinal out of them

[1fast10]

save and sve untill you can go solid roller or hdy roller if its street driven much. it will make a ton more power for 300-400 more than flat tappet.with a 383 and the right cam you should make 525-550hp easily. where right now with your heads and cam your probally making 400ish.

something else to consider is your converter will need to be changed for optimum performance to match new heads and cam.

[satterfield8]

yeah i no it the converter sucks it doesnt like to idle in drive so you have to idle it like at 1000-1100 in park and my bottom end is rated at 500 so hope it dont exploded

[satterfield8]

bringing this thread back up was wondering if anyone could tell me a et gain i would see in the head upgrade also changes piston to flatops the rated at 10.4 comp with 64cc the afr's have 65 and im changing my stall to a 3000 was wondering would youll would think it would pick up when i change the heads, pistons, and converter currently fasted time is in the pic thanks

http://i1207.photobucket.com/albums/bb470/satterfield1/100_0641.jpg

[satterfield8]

i think it would run high to mid 7.60's with that combo with just the converter just a tad lazy off the line my converter will only stall to like 1300

[satterfield8]

anyone?

[satterfield8]

what do you think i would be happier with a roller or going to a bigger flat tappet cam roller just ant in my bufget though but i wont some opioins

[blazaboy86]

You would be able to turn higher rpm's with a roller and you won't have to kill it with lift due to being able to run more duration. Depending on your goals, a roller may not even be necessary.

[Rickracer]

Austin, there's a way you can run a hydraulic roller with stock 2.2, 2.8, or 3.1 roller lifters. It takes some grinding on the block and the stock hydraulic roller dog bones, and drilling and tapping 3 holes in the center of the block. Been running mine with an XR276HR for about 6 months now, done exactly the same way. :cool4:

[satterfield8]

my blocks all ready a oe roller rick its a vortec block 3 holes are all ready taped

[Rickracer]

Why the debate then? I'd definitely go hydraulic roller, :thumbsup:

[satterfield8]

money is the only debate haha but if i get a hydraulic roller i wont this one matchs my combo good

http://www.jegs.com/i/Comp-Cams/249/08-450-8/10002/-1?parentProductId=

and if flat tappet this the one i would like to upgrade to
http://www.jegs.com/i/Comp-Cams/249/10-210-4/10002/-1?parentProductId=

only consern with either is piston to vavle clearance anyone think i would have any probs with that the pistons are your normal speed pro 383 flatop 2 vavle relief pistons and the AFR's have 2.05, 1.60 vavles

i personally like the 280h witch is whats in the truck now with old school 041 heads and runs 7.80- 7.70 all night long with a 1300 stall and 3.73s with a bigger stall it would be in the 7.60's thats why i like the cam but my dad wonts a bigger cam to take advantge of the Afr's campabilty any body think the 280h would work good with the AFR's or is it to small its a 480 480 if youll didnt no and thanks for the input

[83blazerV8]

ditch the dog bones and run link bar howards has a nice set for a good price around $300 i have seen too many dog bones break or the spider break and your rebuilding the engine do it right the first time.

[83blazerV8]

if you want it to perform put in an extream energy hydro roller! i have a .540 .562 and a low stall about 1800 and have run a 7.19 at 96 and 11.25 at 121 before they kicked me out for no cage in my 83 s10 blazer with no tuning

[satterfield8]

What is your motor combo/set up

[RedRider85]

I've been following this build for a while now. Your on the right track but here is some advice, it's all about having each component designed to work the same RPM range as the next piece. The cam, heads, valves, intake, headers exhaust, intake and exhaust port flow numbers all have to work together to make good power. If your running a high lift high durration cam, The heads have to support the flow rate of the intake and exhaust. There is such a thing as having too big of a cam/ intake/heads/ headers/ etc. Start with what compression ratio you want to run, heads you want, and design the rest of the package around that. Your trying to hit the nail in one swing with a blind fold on. Do some research, call a professonal engine builder, or your gonna spend twice the money to make half the power. I've been and done what your doing, take it from me after $7,000+ and months of waisted effort, i finally broke down and started all over again. Eventually getting it right. It's not about what works for someone else, it's what works for your motor.

[satterfield8]

Well it got the combo now i mean it ran a 7.66 with 480 lift cam baby cam in the racing world technically stock heads with 1.94 1.50 vavles not much motor really and its fast i no ppl with alot more motor then mine and they run 7.90's and stuff i guess what im trying to say is i no the hole cobmo is the key to a good running motor and rpm range and stuff like that

[83blazerV8]

207 block 30 over eagle cast crank 3.75 scat 5.7 i-beams mahle power pak flat top -5cc pistons 1.5 1.5 3mm rings comp cams xr294hr .540 .562 242 248 dur 110 lobe center procomp 205 heads 2.02 1.6 valves proform alum 1.5 rockers engine pro srings locks retainers guide plates professional products hurricaine single plane with a cust milled alum 2" carb spacer and a quickfuel 850 drag carb mellings hv oil pump stock oil pan msd pro billet 6al box with a 7000 chip and kendle 30wt oil turbo 350 with a 10inch converter that stalls to 1800

[farond21]

I know you are looking to get some AFR's and they are quality heads. If you are on a budget I would look in to these. http://www.jegs.com/i/Dart/301/127322/10002/-1?parentProductId=1691309