370 vs 408 N.A help
#1
Staging Lane
Thread Starter
370 vs 408 N.A help
Alright guys I just cant make a decision and I'm about ready to pull the trigger on an engine going with Thompson motorsport ,my goal is 500+whp daily drivable ish with ac etc in my 01 z28 6spd 4.10s , I if I cheap out and save the $900 ish and go 370ci how much power will I be missing out on compared to the 408 ? I have the fast 102 ported 243s with larger valves ,cant afford new heads so I have to run these .also TMS suggest a 238-242 113 cam which I think is small for a stroker ,but I do want it to drive nice in traffic ac on etc ,also I was told my 36lb injectors are sufficient but I also feel that they are small for 500+ hp and was told to get 42-46lb
The following 2 users liked this post by ddnspider:
00pooterSS (01-08-2020), Ws6-dickie (01-03-2020)
#4
TECH Veteran
Contact Pat G for a cam.... thank me a later.
The following users liked this post:
blsnelling (01-07-2020)
#5
Power (HP) will be minimal between the two, Tq is where you will see the difference. You will have more usable HP/TQ with the 408. Let us know if we can help in any way. Thank you sir.
Thank you,
Kyle
972-853-2450
Thank you,
Kyle
972-853-2450
The following 2 users liked this post by thompson:
02*C5 (11-18-2021), Ws6-dickie (01-07-2020)
#6
Staging Lane
Thread Starter
I'll be given you guys a call real soon just coming up with the last few hundred I need
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#10
TECH Fanatic
I'm really pleased so far with the iron 376 with just 853 heads I built for about 11.1:1 though I'm using much less cam so the tourqe is awesome at the stock cruising rpms,. That cam spec looks really big to me but I don't know anything
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00pooterSS (01-08-2020)
The following 2 users liked this post by 99 Black Bird T/A:
blsnelling (01-08-2020), wannafbody (01-08-2020)
#15
TECH Fanatic
Stock stroke cranks can be had for free so if it gets hurt at some point down the road it's going to cost a lot less to repair it or at that point if you had more funds you could make it a stroker, I'm thinking you would be happy with a flat top 370-376" and your heads but I'm on a tight budget so I wouldn't splurge on a fancy crank unless the rest of the car was setup ideal for it. N/a only though and no budget to worry about (your money) I'd do as much cid as possible for a weekend car
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KW Baraka (01-08-2020)
#17
11 Second Club
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#18
TECH Veteran
#19
TECH Apprentice
Yes! Or whatever fits your budget. Maybe the 370 with your 243s will make for a good combo. The 408 may need more flow if you want to take advantage of the extra cubic inches.
#20
TECH Veteran
iTrader: (40)
Buy once and build once. Save up a few more hundred and do the stroker. Then start saving again to do the heads you want later.
But if you do the 370 now there is a good chance you will regret it. I doubt there will ever be a time that you go man I wish I had a 370 instead of a 408
But if you do the 370 now there is a good chance you will regret it. I doubt there will ever be a time that you go man I wish I had a 370 instead of a 408
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Tuskyz28 (01-08-2020)