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Username Post: goodwrench 350 into 84 impala        (Topic#348751)
VRdrift 
Forum Newbie
Posts: 5

Reg: 12-18-17
12-18-17 03:42 AM - Post#2718332    

hey guys new to the forum from Australia, just want to confirm if a crate engine i have casting 10066036 will be a direct swap out from the factory 305, I want to put my original carb an intake etc onto the new motor, thanks



 




raycow 
Honored Member
Posts: 27372
raycow
Loc: San Francisco, CA
Reg: 11-26-02
12-18-17 01:54 PM - Post#2718358    
    In response to VRdrift

There are two potential compatibility issues you need to check out before you lay down your money - the heads and the crank flange.

If the crate engine uses center bolt valve covers, your intake manifold won't bolt up to those heads. If it has a one-piece rear crankshaft seal, your flywheel/flexplate won't fit the crank flange bolt pattern.

I can't tell you how to identify these issues without actually looking at the engine. If you can't tell by looking, ask the vendor. If the vendor can't answer these questions, you might be better off shopping elsewhere.

Ray

Those who choose an automatic transmission want transportation. Those who choose a manual transmission want to drive.


 
VRdrift 
Forum Newbie
Posts: 5

Reg: 12-18-17
12-18-17 03:19 PM - Post#2718364    
    In response to raycow

Thank you Ray, it’s not a center bolt motor I think, I’m going to look at it later, and I’ll grab a pic of the crank seal of that helps? it’s a second hand motor, it was used only very briefly



 
raycow 
Honored Member
Posts: 27372
raycow
Loc: San Francisco, CA
Reg: 11-26-02
12-18-17 05:36 PM - Post#2718370    
    In response to VRdrift

The crank flange is less of an issue than the heads. Assuming you have an automatic trans, the later type flexplate isn't expensive or difficult to find. For that reason, the flange shouldn't be a deal breaker. IMO, the one-piece seal is a better design anyway.

Ray

Those who choose an automatic transmission want transportation. Those who choose a manual transmission want to drive.


 
VRdrift 
Forum Newbie
Posts: 5

Reg: 12-18-17
12-18-17 05:51 PM - Post#2718373    
    In response to raycow

Cool, cheers yea I’m told the heads are the earlier type, (bolts on the sides,)but since I know little of these I’ll post some pics up later to be absolutely sure, yes it’s an auto, and the car is almost stock, only reason I want to swap to this engine is because I’m getting it for a lot cheaper than I can rebuild the 305 for,



 
VRdrift 
Forum Newbie
Posts: 5

Reg: 12-18-17
12-19-17 11:25 PM - Post#2718508    
    In response to VRdrift

i cant upload pictures as my image hosting site does not recognise this site, but its a gen 1 style engine with the 2 piece seal, a guy on another site is telling me my cc quadrajet will not work on the 350, is there any truth to that?




 
raycow 
Honored Member
Posts: 27372
raycow
Loc: San Francisco, CA
Reg: 11-26-02
12-19-17 11:55 PM - Post#2718510    
    In response to VRdrift

Does cc mean computer controlled? If yes, I honestly don't know enough about that to answer. What does your other site guy say won't work? I mean, is it a calibration issue or what? Also, does the finished installation have to pass an emission test? If yes, your guy might very well be right.

Ray

Those who choose an automatic transmission want transportation. Those who choose a manual transmission want to drive.


 
VRdrift 
Forum Newbie
Posts: 5

Reg: 12-18-17
12-20-17 03:32 AM - Post#2718513    
    In response to raycow

yes computer controlled, there are no emissions tests at all here, but im being told dont bother with it all, its cheap enough to convert it to a regular carb and distributor



 
1983G20Van 
Super Senior Member
Posts: 3695

Loc: Bedford, Texas, USA
Reg: 11-13-02
01-03-18 03:35 PM - Post#2719901    
    In response to VRdrift

  • VRdrift Said:
i cant upload pictures as my image hosting site does not recognise this site, but its a gen 1 style engine with the 2 piece seal, a guy on another site is telling me my cc quadrajet will not work on the 350, is there any truth to that?




CCC Q-Jet will work just fine on a 350. May need some mechanical adjustments to the mixture control system and a better set of secondary rods (Would find some DR's to start on a lower alpha hanger. (B-H hanger) but if the system is correctly operating and in good shape it will run and drive as if it still had the 305 under it driveability wise and just have the added punch of the 350 when you are into the throttle. I have had one on both a 403 Oldsmobile that went in place of a 307 in a 1988 Cadillac and a 400 HP 383 Chevy in a 1985 Elcamino.


1983 G20 Van, 350 TPI, Ported 906 Vortecs, Edelbrock 3817 Base, ASM oversize runners. Reed Custom Roller cam, 700r4, 12 bolt with 3.08 gears, Doug Thorley Tri-Y headers, true duals


Edited by 1983G20Van on 01-03-18 03:37 PM. Reason for edit: No reason given.

 




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