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can i use my 492 iron heads on the zz383 block? is this feasible? are the gm aluminum fast burn heads really that good?
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Duncanville, TX - USA
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Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
The heads will bolt on, absolutely. All 350 type heads are pretty much the same, as far as bolting to the block. The one odd-ball of the group is the 400 engine/heads. They are different, but the 400 heads can be used on a 350 block by drilling some holes for the steam pockets.
The fast burn heads are an improvement over just about any "stock" 350 head.
A stroker engine will almost always need a better intake trac to work properly, this includes the intake, and the heads.
Adams' Apple 2007-02-24 22:25:15
The fast burn heads are an improvement over just about any "stock" 350 head.
A stroker engine will almost always need a better intake trac to work properly, this includes the intake, and the heads.
Joel Adams
C3VR Lifetime Member #56 
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"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
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thanks for the reply, i also found out that i can't use my hooker side pipes with the gm aluminum fast burn heads! that stinks! it might be worth giving up the sidepipes though for more torque!
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why go to the work of a 383 and then put standard heads?????
1979 Corvette
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V
You can use your sidepipes with the GM Fastburn Heads. That's what I'm running.
1977 Corvette EX-L48
383 Stroker, Holley MPFI, MSD Ignition, BTO 700R4, VBP Street/Slalom, Hooker Sidepipes with JCL Spiral Baffles, Corbeau A4s w/ Shark Bar and Simpson 5-Points, 17" AR TTII's, Kumho MX's
(click to see a bigger version)
383 Stroker, Holley MPFI, MSD Ignition, BTO 700R4, VBP Street/Slalom, Hooker Sidepipes with JCL Spiral Baffles, Corbeau A4s w/ Shark Bar and Simpson 5-Points, 17" AR TTII's, Kumho MX's
(click to see a bigger version)
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thanks again people!
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hello joanne
the zz 383 puts out 450hp@5600rpm
and the torque is 488@4400rpm
it is from gilbert chevrolet, however i live in alberta canada and they will not ship it to me! my local engine shop will match these engine numbers.
anyway i thought that wasn't to shabby for those style of head.
smiley
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V
I`m using stock 186 chevy heads on my 383 stroker. puts out 500 ponies and has no issues. I run hooker sidepipes with it. the car sounds wicked.
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r
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Send PMBladenboro, NC - USA
Joined: 1/22/2006
Posts: 1058
Vette(s): 1972 conv., sunfire yellow, blk interior, blk vinyl and convertible top. Off frame restoration with American Speed 383 stroker engine producing 500hp plus a 200hp NOS system. MSD ignition. Hooker super competition headers with chambered exhaust.
When American Speed built my 383 they used AFR 190 stage II heads. There's better ones out there now...see below. 
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Test Description:
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in Forum: C3 Engines, Driveline and Handling
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