Going from Cathedral heads to Rectangular........any issues
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Going from Cathedral heads to Rectangular........any issues So, 6.0L iron block with Diamond flat top pistons but with valve reliefs.
Is there any problems I could run into where doing this won't work without going into the engine?
Can I install any aftermarket, thicker deck LS3 style head and thats it, bolt it on and go?
Is there any problems I could run into where doing this won't work without going into the engine?
Can I install any aftermarket, thicker deck LS3 style head and thats it, bolt it on and go?
I'm running LSA heads on my iron 6.0 block no problem. You'll be just fine throwing aftermarket heads on. Just watch the valve size on some heads as some will be too big for the 4" bore
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Can I use LS9 heads, there's a member selling a real nice set?
Or can I use these for example?
260cc LS3 Cylinder Head (airflowresearch.com)
Which of the two do you think would be better to use? Its a 390ci and I think I'm going to use this turbo on a Huron Speed T6 A/C single turbo kit. Jonathon at Huron Speed told me yesterday it will fit the kit perfectly.
Forced Inductions. FORCED INDUCTIONS V5 BILLET S491 CRC 102 TW 1.32 A/R T6 Housing
I have a 4.030" bore size.
Can I use LS9 heads, there's a member selling a real nice set?
Or can I use these for example?
260cc LS3 Cylinder Head (airflowresearch.com)
Which of the two do you think would be better to use? Its a 390ci and I think I'm going to use this turbo on a Huron Speed T6 A/C single turbo kit. Jonathon at Huron Speed told me yesterday it will fit the kit perfectly.
Forced Inductions. FORCED INDUCTIONS V5 BILLET S491 CRC 102 TW 1.32 A/R T6 Housing
Can I use LS9 heads, there's a member selling a real nice set?
Or can I use these for example?
260cc LS3 Cylinder Head (airflowresearch.com)
Which of the two do you think would be better to use? Its a 390ci and I think I'm going to use this turbo on a Huron Speed T6 A/C single turbo kit. Jonathon at Huron Speed told me yesterday it will fit the kit perfectly.
Forced Inductions. FORCED INDUCTIONS V5 BILLET S491 CRC 102 TW 1.32 A/R T6 Housing
Of the two I'd go with the AFR heads without question
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To go LS9 what do I need for studs? Will they screw into my factory bolt holes?
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One more.....the deck thicknesses. Is the aftermarket LS3 AFR head stronger in the deck thickness department than the LS9?
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In my setup I've got LSA heads, LS9 heads gaskets, ARP studs with a vsracing s480 t6 pushing 16psi
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Pretty much all aftermarket heads have a 3/4" deck thickness. I don't believe any of the factory heads have a 3/4 deck they just switched up the way some of them were cast. An example would be the LSA heads are rotocast to provide an overall stronger casting.
In my setup I've got LSA heads, LS9 heads gaskets, ARP studs with a vsracing s480 t6 pushing 16psi
In my setup I've got LSA heads, LS9 heads gaskets, ARP studs with a vsracing s480 t6 pushing 16psi
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That’s a drop from 10.2:1 down to 9.8:1.
That seems like a big drop to me.
Can the heads be shaved and still not have issues with PTV clearance?
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Also, you can either mill heads or run a thinner gasket.
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234/234 .621/.604 115+4
All I know about my pistons is that they are Diamond flat tops with valve reliefs.
Probably can’t tell from pictures but this is all I know.
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[QUOTE=BigBoyWS6;20536712]My cam:
234/234 .621/.604 115+4
All I know about my pistons is that they are Diamond flat tops with valve reliefs.
I don't have any personal knowledge with that piston but they have nice sized valve reliefs. The cam in my 370 build had more duration and lift than those cam specs and with Wiseco 12cc domes I had plenty of P-V with the LS3 heads. I wouldn't assume that you have enough clearance and it's always best to measure.
234/234 .621/.604 115+4
All I know about my pistons is that they are Diamond flat tops with valve reliefs.
I don't have any personal knowledge with that piston but they have nice sized valve reliefs. The cam in my 370 build had more duration and lift than those cam specs and with Wiseco 12cc domes I had plenty of P-V with the LS3 heads. I wouldn't assume that you have enough clearance and it's always best to measure.
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[QUOTE=01CamaroSSTx;20536718]
I don't have any personal knowledge with that piston but they have nice sized valve reliefs. The cam in my 370 build had more duration and lift than those cam specs and with Wiseco 12cc domes I had plenty of P-V with the LS3 heads. I wouldn't assume that you have enough clearance and it's always best to measure. ok that’s good to hear. Yes, it’ll be measured. I guess going to .040 solves the larger 69cc chamber issue. 10.46:1 on E85 should be fine.
Actually 10.46:1.. I made a mistake at 10.55:1
Thanks.
I don't have any personal knowledge with that piston but they have nice sized valve reliefs. The cam in my 370 build had more duration and lift than those cam specs and with Wiseco 12cc domes I had plenty of P-V with the LS3 heads. I wouldn't assume that you have enough clearance and it's always best to measure.
Actually 10.46:1.. I made a mistake at 10.55:1
Thanks.