Engine Build - Team Camaro Tech
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post #1 of 45 (permalink) Old Mar 15th, 09, 01:14 PM Thread Starter
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Charlie
 
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Engine Build

I just bought a mid 70's 350 truck block 4 bolts mains, .040" over with .040" over Speed Pro flat top hypereutectic pistons and rods and a crank that is has been 10 10 he said. What is 10 10? Does that mean the crank has been turned to use .010" oversize bearings? I only paid $500 for everything. My plans are to turn it into a 385 or whatever a 350 bored .040" over with a 400 crank will give you or I may just use the crank that came with it and make the 356 or 357. The block has been line bored as well. I think $500 is a good deal for a block, rods, pistons, crank and the machine work. My question is, is it necessary to always file your rings? How do you know when you need to? I imagine I need to buy rings for .040" pistons, right? Don't rings for .040" over pistons mean they shouldn't need filing? This will be my first complete engine build. I am doing this to teach my son and also to build a more powerful engine for my Camaro. I plan on using a retro roller cam and fuel injection just for the hell of it. I hope I will be able to rely on the guys here if I have any questions along the way?

Here is another question. Are the Speed Pro pistons good for a street motor? Also, will they be ok to run in a stroker motor? I am really thinking of making this a stroker. I may get a Scat stroker crank, but I have absolutely zero experience with strokers. I see 383 cranks, but this is bigger than a 383. Can I still use that crank even though the bore size is 4.060"? When they say 383 crank, do they just mean the stroke has gone from 3.480" to 3.750"? Also, with a flat top piston, if I trying to get a 10.5:1-11:1 out of this thing, what cc head do I run and what head gasket? I may just save the money it would cost for the stroker crank and use the crank I have and just make the 356 or 357. I can still get good power for a street car from a 356-357, right?

Charlie Knudsen 67 Camaro RS/SS 350 TKO 600, 4.10's, AFR 195 Street Heads, Comp 270H, Rhoads Lifters, Crane Ignition, Pertronix Dizzy, Performer RPM Q-Jet, Heavily Modified Q-Jet, Hooker Comp Headers, MagnaFlow 2 1/2", 144 Decibles(Alpine CDA-7998 Head Unit, RF X7 and RF 750X Amps, MB Quart Mid's & High's, Kicker L7 12" Solo Barics)

Last edited by 67CamaroRS/SS; Mar 15th, 09 at 01:26 PM.
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post #2 of 45 (permalink) Old Mar 15th, 09, 02:16 PM
Richard
 
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Re: Engine Build

Quote:
Originally Posted by 67CamaroRS/SS View Post
I just bought a mid 70's 350 truck block 4 bolts mains, .040" over with .040" over Speed Pro flat top hypereutectic pistons and rods and a crank that is has been 10 10 he said. What is 10 10? Does that mean the crank has been turned to use .010" oversize bearings? I only paid $500 for everything. My plans are to turn it into a 385 or whatever a 350 bored .040" over with a 400 crank will give you or I may just use the crank that came with it and make the 356 or 357. The block has been line bored as well. I think $500 is a good deal for a block, rods, pistons, crank and the machine work. My question is, is it necessary to always file your rings? How do you know when you need to? I imagine I need to buy rings for .040" pistons, right? Don't rings for .040" over pistons mean they shouldn't need filing? This will be my first complete engine build. I am doing this to teach my son and also to build a more powerful engine for my Camaro. I plan on using a retro roller cam and fuel injection just for the hell of it. I hope I will be able to rely on the guys here if I have any questions along the way?

Here is another question. Are the Speed Pro pistons good for a street motor? Also, will they be ok to run in a stroker motor? I am really thinking of making this a stroker. I may get a Scat stroker crank, but I have absolutely zero experience with strokers. I see 383 cranks, but this is bigger than a 383. Can I still use that crank even though the bore size is 4.060"? When they say 383 crank, do they just mean the stroke has gone from 3.480" to 3.750"? Also, with a flat top piston, if I trying to get a 10.5:1-11:1 out of this thing, what cc head do I run and what head gasket? I may just save the money it would cost for the stroker crank and use the crank I have and just make the 356 or 357. I can still get good power for a street car from a 356-357, right?

383 crank is a 400 crank i believe

when you put a 400 crank in a 350 it becomes a 383

and yes your pistons are good for a street motor and their good for a stroker motor


and to get a 10.5:1-11:1 im guessing a 64cc head should do

and yes you could still make good power from a 356-357 on the street
but a stroker would provide more torque


dont quote me on this im not an expert
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post #3 of 45 (permalink) Old Mar 15th, 09, 02:23 PM
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David
 
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Re: Engine Build

Quote:
Originally Posted by 67CamaroRS/SS View Post
a crank that is has been 10 10 he said. What is 10 10? Does that mean the crank has been turned to use .010" oversize bearings?
....it signifies that the main bearing journals & the connecting rod journals on the crankshaft have indeed been machined down .010 requiring oversize bearings for both the main bearings and connecting rods. Good luck with the father/son project.

David F.

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post #4 of 45 (permalink) Old Mar 15th, 09, 02:26 PM
Cole
 
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Re: Engine Build

Good luck with the build, should be fun. As far as filing the rings, maybe. My experience has been that sometimes oversize rings may require filing due to different applications. You won't know until you place the ring in the bore to check end gap.
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post #5 of 45 (permalink) Old Mar 15th, 09, 06:13 PM
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Tom
 
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Talking Re: Engine Build

Sorry, your pistons will not work, if you install a different crankshaft. They must be 383 (385) pistons, not your standard 350 pistons. The pin height, is different, depending on the stroke of the engine. Example: a 302,327,350,383 are all 4" bore pistons but, their pin heights are all different. (a 383 is actually a .030 over bore).

69 Camaro -originally a LM1 car. 327, Edelbrock E-streets, hooker, DUI performance distributors, ultradyne cam, stewart, TRW etc. Vintage Air, AGR steering, Corbeau GTSII seats, 700R4 transmission, 12-bolt w/Eaton 4.11:1
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post #6 of 45 (permalink) Old Mar 15th, 09, 06:20 PM
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Tom
 
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Smile Re: Engine Build

Another thing... If you use a 400 crankshaft, you must have the main journals turned down to fit in a 350 block. If you buy a stroker crankshaft, this should all ready be done.

69 Camaro -originally a LM1 car. 327, Edelbrock E-streets, hooker, DUI performance distributors, ultradyne cam, stewart, TRW etc. Vintage Air, AGR steering, Corbeau GTSII seats, 700R4 transmission, 12-bolt w/Eaton 4.11:1
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post #7 of 45 (permalink) Old Mar 15th, 09, 07:33 PM Thread Starter
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Charlie
 
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Re: Engine Build

The guy said that this crank is not the crank that came with the block. Is there a way to still use it with this block? The pistons are indeed for this block. I did not intend to use these pistons if I went stroker. I think I can still get good power from this setup. I think it's very possible to get 400hp from this setup. With a good set of aluminum heads, it will be possible.

Charlie Knudsen 67 Camaro RS/SS 350 TKO 600, 4.10's, AFR 195 Street Heads, Comp 270H, Rhoads Lifters, Crane Ignition, Pertronix Dizzy, Performer RPM Q-Jet, Heavily Modified Q-Jet, Hooker Comp Headers, MagnaFlow 2 1/2", 144 Decibles(Alpine CDA-7998 Head Unit, RF X7 and RF 750X Amps, MB Quart Mid's & High's, Kicker L7 12" Solo Barics)
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post #8 of 45 (permalink) Old Mar 15th, 09, 07:46 PM Thread Starter
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Charlie
 
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Re: Engine Build

Quote:
Originally Posted by 1969ProStreetCamaro View Post
....it signifies that the main bearing journals & the connecting rod journals on the crankshaft have indeed been machined down .010 requiring oversize bearings for both the main bearings and connecting rods. Good luck with the father/son project.

David F.
Thanks for the vote of confidence. I have been wanting to start a project like this for a while, but have not found a good deal.

Charlie Knudsen 67 Camaro RS/SS 350 TKO 600, 4.10's, AFR 195 Street Heads, Comp 270H, Rhoads Lifters, Crane Ignition, Pertronix Dizzy, Performer RPM Q-Jet, Heavily Modified Q-Jet, Hooker Comp Headers, MagnaFlow 2 1/2", 144 Decibles(Alpine CDA-7998 Head Unit, RF X7 and RF 750X Amps, MB Quart Mid's & High's, Kicker L7 12" Solo Barics)
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post #9 of 45 (permalink) Old Mar 15th, 09, 09:31 PM
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Tom
 
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Talking Re: Engine Build

Charlie, No offense but, Slow down and read what has been written. Is your block .040 over or .060 over ? Is the crank that you have for a 350 or a 400 ? Pistons are more dependent on the crank size. I don't care if the pistons came with the block. What are they ? If they are 350 pistons, they can not be used in a 383. If the crank is for a 400 it must be modified to be used in a 350 block. Figure out what you have then tell us !

69 Camaro -originally a LM1 car. 327, Edelbrock E-streets, hooker, DUI performance distributors, ultradyne cam, stewart, TRW etc. Vintage Air, AGR steering, Corbeau GTSII seats, 700R4 transmission, 12-bolt w/Eaton 4.11:1
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post #10 of 45 (permalink) Old Mar 16th, 09, 07:04 AM Thread Starter
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Charlie
 
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Re: Engine Build

Quote:
Originally Posted by TJS69 View Post
Charlie, No offense but, Slow down and read what has been written. Is your block .040 over or .060 over ? Is the crank that you have for a 350 or a 400 ? Pistons are more dependent on the crank size. I don't care if the pistons came with the block. What are they ? If they are 350 pistons, they can not be used in a 383. If the crank is for a 400 it must be modified to be used in a 350 block. Figure out what you have then tell us !

The block is .040 over. The crank I am not sure what it's from. I don't think it's a 400. That's why I posted the casting number from the crank. The pistons are 350 pistons. I know IF I plan on making a 383, I would need a whole new rotating assembly. I can't see spending the money on a new rotating assembly just to make a 383 or 385 whatever .040 over gives you when I have this rotating assembly.

Charlie Knudsen 67 Camaro RS/SS 350 TKO 600, 4.10's, AFR 195 Street Heads, Comp 270H, Rhoads Lifters, Crane Ignition, Pertronix Dizzy, Performer RPM Q-Jet, Heavily Modified Q-Jet, Hooker Comp Headers, MagnaFlow 2 1/2", 144 Decibles(Alpine CDA-7998 Head Unit, RF X7 and RF 750X Amps, MB Quart Mid's & High's, Kicker L7 12" Solo Barics)
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post #11 of 45 (permalink) Old Mar 16th, 09, 07:07 AM Thread Starter
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Charlie
 
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Re: Engine Build

Here is what one crank id site says it fits.
1969-85 3932442 305,350 cast large two piece rear main application: in 1979-82 267

Charlie Knudsen 67 Camaro RS/SS 350 TKO 600, 4.10's, AFR 195 Street Heads, Comp 270H, Rhoads Lifters, Crane Ignition, Pertronix Dizzy, Performer RPM Q-Jet, Heavily Modified Q-Jet, Hooker Comp Headers, MagnaFlow 2 1/2", 144 Decibles(Alpine CDA-7998 Head Unit, RF X7 and RF 750X Amps, MB Quart Mid's & High's, Kicker L7 12" Solo Barics)
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post #12 of 45 (permalink) Old Mar 16th, 09, 07:11 AM Thread Starter
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Charlie
 
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Re: Engine Build

Here is what another site says:

3932442 350 68-81 Pass,Camaro,Chevelle Corvette,Nova Cast Iron,Large Journal
3932442 350 69-85 Truck Cast Iron,Large Journal
3932442 305 76-85 Truck Cast Iron,Large Journal
3932442 305 76-85 Cast Iron,Large Journal
3932442 267 79-82 Cast Iron,Large Journal


It looks like it will fit this block. I think I will just go ahead with this setup. I am sure I will get plenty of torque out of this setup. With a good set of heads, I will easily get 400ftlbs, probably more. I got 324lbfts now from a 9:1 350 with 1971 smog heads.

Charlie Knudsen 67 Camaro RS/SS 350 TKO 600, 4.10's, AFR 195 Street Heads, Comp 270H, Rhoads Lifters, Crane Ignition, Pertronix Dizzy, Performer RPM Q-Jet, Heavily Modified Q-Jet, Hooker Comp Headers, MagnaFlow 2 1/2", 144 Decibles(Alpine CDA-7998 Head Unit, RF X7 and RF 750X Amps, MB Quart Mid's & High's, Kicker L7 12" Solo Barics)
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post #13 of 45 (permalink) Old Mar 16th, 09, 09:38 AM
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Tom
 
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Talking Re: Engine Build

Charlie, It looks like you have it figured out now. Sorry, about the confusion. Put it all together and see how it goes ! A 64cc head will probably get you about 9.7 to 10:1 compression. If you go with anymore compression than that, pump gas won't work very well. (unless it is cammed with DCR in mind) On a budget I would run some newer double hump heads with accessory holes and a 268S solid cam. That should be a good street engine !

69 Camaro -originally a LM1 car. 327, Edelbrock E-streets, hooker, DUI performance distributors, ultradyne cam, stewart, TRW etc. Vintage Air, AGR steering, Corbeau GTSII seats, 700R4 transmission, 12-bolt w/Eaton 4.11:1
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post #14 of 45 (permalink) Old Mar 16th, 09, 11:57 AM Thread Starter
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Charlie
 
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Re: Engine Build

Quote:
Originally Posted by TJS69 View Post
Charlie, It looks like you have it figured out now. Sorry, about the confusion. Put it all together and see how it goes ! A 64cc head will probably get you about 9.7 to 10:1 compression. If you go with anymore compression than that, pump gas won't work very well. (unless it is cammed with DCR in mind) On a budget I would run some newer double hump heads with accessory holes and a 268S solid cam. That should be a good street engine !

I was planning on going retro roller. Also, fuel injection was something I wanted to do with this build. I planned on running a nice 180cc or 195cc aluminum AFR head. The cam I run now is a Comp 270H-10(224*/224* @.050" 470"/470" lift). I wanted something around that or maybe a little larger. I think with the compression around 10.5, I could get away with a XR276HR(224*/230* @ .050" .502"/.510" lift).

Charlie Knudsen 67 Camaro RS/SS 350 TKO 600, 4.10's, AFR 195 Street Heads, Comp 270H, Rhoads Lifters, Crane Ignition, Pertronix Dizzy, Performer RPM Q-Jet, Heavily Modified Q-Jet, Hooker Comp Headers, MagnaFlow 2 1/2", 144 Decibles(Alpine CDA-7998 Head Unit, RF X7 and RF 750X Amps, MB Quart Mid's & High's, Kicker L7 12" Solo Barics)
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post #15 of 45 (permalink) Old Mar 16th, 09, 12:23 PM
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Tom
 
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Talking Re: Engine Build

Wow, so much for a budget, huh ! On a 350 I would go with the 180cc AFR's. On a 383 I would use the 215's or a 195 cc. I have heard that it is better to go a little big then too small. Are you going to upgrade your transmission ? I would at least drop in a TH-350 or a 700r4. They say with a cam like that, you will need about a 2500 stall. I have a 270 cam, and I am not happy with it at all. The 268 cam will outperform it.

69 Camaro -originally a LM1 car. 327, Edelbrock E-streets, hooker, DUI performance distributors, ultradyne cam, stewart, TRW etc. Vintage Air, AGR steering, Corbeau GTSII seats, 700R4 transmission, 12-bolt w/Eaton 4.11:1

Last edited by TJS69; Mar 16th, 09 at 12:37 PM.
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