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  1. #46
    Do you ever leave? HQ308Ute's Avatar
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    He doent need 260cfm.. a good valve job and clean up the short turns on his early heads and good to go. Pauly just wants you to rev out to 7000 grand like he does when he goes to the chicken shop for dinner lolz. 😉

  2. #47
    Do you ever leave? paulzig's Avatar
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    Quote Originally Posted by HQ308Ute View Post
    He doent need 260cfm.. a good valve job and clean up the short turns on his early heads and good to go. Pauly just wants you to rev out to 7000 grand like he does when he goes to the chicken shop for dinner lolz. ��
    I know he doesnt this was in reference to Bills 355 with early heads which had 250-260CFM in the link he posted. 250CFM is what a set of VN heads will go with a light touch up stock valve sizes 1.94/1.6.. The red heads will take more effort, they will need the seats cut throated for the same L34 size valves and then heavier porting for the same numbers...

    Not that it matters, just saying... You dont even need to flow anything these days, flow numbers are only there to sell stuff...

  3. #48
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    Quote Originally Posted by paulzig View Post
    I know he doesnt this was in reference to Bills 355 with early heads which had 250-260CFM in the link he posted. 250CFM is what a set of VN heads will go with a light touch up stock valve sizes 1.94/1.6.. The red heads will take more effort, they will need the seats cut throated for the same L34 size valves and then heavier porting for the same numbers...

    Not that it matters, just saying... You dont even need to flow anything these days, flow numbers are only there to sell stuff...
    Thanks, got it now. will get the red heads mildly ported for the L34 size valves etc.
    Cheers.

    Sent from my SM-T355Y using Tapatalk

  4. #49
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    Quote Originally Posted by paulzig View Post
    There are SFT cams, but you want a 300-350HP streeter, 10:1 flat tops, H226, you dont need roller rockers but they are nice
    Thanks

    Sent from my SM-T355Y using Tapatalk
    Last edited by Adam76; 19-06-2019 at 10:44 PM.

  5. #50
    casual poster JaseQ314's Avatar
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    Can anybody remember did Punxsutawney Phil see his shadow this year?

  6. #51
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    Quote Originally Posted by paulzig View Post
    How much spent on heads to get 250-260CFM?...
    Sh1t loads!

    Had I spent the same amount on a set of VN heads Id be running low 10s not 11s!

    Mild 308 Id stick with early heads... On a 355, 400+, Id go EFI heads. Its a no brainer.

    Having said this, one would need to think ahead too... my build started off as a warmed up 308 with a hydraulic cam, then I decided to go early headed solid crane 280, now Im 258@50 SFT, 5k stall and 4.44 with a very light set of early heads...

  7. #52
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    Quote Originally Posted by Adam76 View Post
    Now you're just confusing me
    Do I go The 304 with VN heads for an extra grand or stick with the early heads and original motor?

    Sent from my SM-T355Y using Tapatalk
    For what you are after, a 308 with 350, I would stick with the early heads, go a solid 272... 280 if you run 3.55 gears and 3,500 stall.

    If you end up going a stroker, go EFI heads and a 280.

    280 355 EFI would be better bang for buck, but a few more bucks...

  8. #53
    Do you ever leave? paulzig's Avatar
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    Quote Originally Posted by Bill355 View Post
    For what you are after, a 308 with 350, I would stick with the early heads, go a solid 272... 280 if you run 3.55 gears and 3,500 stall.

    If you end up going a stroker, go EFI heads and a 280.

    280 355 EFI would be better bang for buck, but a few more bucks...
    These days doing a 355 I would be doing a hydraulic roller streeter 450-500HP.

    The 226 is better suited to this than the 272, 90% of stuff out there is way over cammed and underheaded, and under manifolded lol ... HE could use the stock rockers with the 226 until he saves for rollers too...

  9. #54
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    Quote Originally Posted by paulzig View Post
    These days doing a 355 I would be doing a hydraulic roller streeter 450-500HP.

    The 226 is better suited to this than the 272, 90% of stuff out there is way over cammed and underheaded, and under manifolded lol ... HE could use the stock rockers with the 226 until he saves for rollers too...
    Thanks guys, appreciate all the info.
    I know how easy it is to get carried away with a 308 build, so I'm just going to keep it basic and simple.
    Crane 226/314 cam and mild porting of early heads with L34 valves.


    Sent from my SM-T355Y using Tapatalk

  10. #55
    Not the Kingswood! hq308's Avatar
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    If it was me I'd use the early block and fit it with VN heads even if the current goal is only 300-350hp. You'll pick up a set of VN heads for $200-300 and they'll need nothing more than a reco to achieve your current goal but leave plenty of room for the future when 350 isn't enough.

    Assuming what you have now is stock, whether you run VN or Early heads you still need to buy an intake,cam, headers etc so there won't really be much extra cost going to VNs.

  11. #56
    Do you ever leave? paulzig's Avatar
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    Quote Originally Posted by hq308 View Post
    If it was me I'd use the early block and fit it with VN heads even if the current goal is only 300-350hp. You'll pick up a set of VN heads for $200-300 and they'll need nothing more than a reco to achieve your current goal but leave plenty of room for the future when 350 isn't enough.

    Assuming what you have now is stock, whether you run VN or Early heads you still need to buy an intake,cam, headers etc so there won't really be much extra cost going to VNs.
    Yeah, I would you would but some people just like the early stuff... Its a lot less headache when people say 'why the VN heads on a 308, you'll have no TQ, the Holden engineers were stupid for putting heads like that on 5L'... I think the VN revision was the best thing they ever done, the early top end is garbage lol

  12. #57
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    Quote Originally Posted by hq308 View Post
    If it was me I'd use the early block and fit it with VN heads even if the current goal is only 300-350hp. You'll pick up a set of VN heads for $200-300 and they'll need nothing more than a reco to achieve your current goal but leave plenty of room for the future when 350 isn't enough.

    Assuming what you have now is stock, whether you run VN or Early heads you still need to buy an intake,cam, headers etc so there won't really be much extra cost going to VNs.
    Thanks, I'll see if I can get hold of a set.

    Sent from my SM-T355Y using Tapatalk

  13. #58
    Do you ever leave? HQ308Ute's Avatar
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    Thanks, I'll see if I can get hold of a set.
    yeh you can theyre everywhere.

    well i said that at the start.. it's good to know i'm the genius around here..

  14. #59
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    Quote Originally Posted by paulzig View Post
    These days doing a 355 I would be doing a hydraulic roller streeter 450-500HP.

    The 226 is better suited to this than the 272, 90% of stuff out there is way over cammed and underheaded, and under manifolded lol ... HE could use the stock rockers with the 226 until he saves for rollers too...
    226 is much better than the 286 that everyone has a hard on for too IMHO.

  15. #60
    254RWHP boat anchor EVL253's Avatar
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    other thing to factor in is what you can get a 355 rotating assembly for. get one thats balanced.

    now add up the cost to grind the crank, resize the rods with new bolts. fit the pistons, possibly balance if pistons aernt to stock weight. that is close to what a basic stroker kit is worth
    11 second E85 bottle fed boat anchor

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