400 whp b18b with forged internals

Aussie

Zoom-Zoom
took mine to 9k. it will be fine even had a buddy of mine over rev, well two of my buddys have over reved my car to like 12k.
as long as yuo have the internals to handle it the block will be fine
Your not going to be able to take an ls head to 9k. And without really good valve springs matched to your cams reving over 10k will blow your motor.
 

Winki

Undercover mod
Your not going to be able to take an ls head to 9k.
LOL come on guys it will be fine to go past 8k as long as his head can handel it reving high wont pe a problem with his sleeves.
good thing he is getting a gsr head lol
And without really good valve springs matched to your cams reving over 10k will blow your motor.
yeah i was pretty worried my self. watching them, tach wrap around:shock:. i had never been so happy on my decision to get dual valve springs. 8)
 


jason_guy_yeah

New Member
I have a ls head with skunk double valve springs(I bought the engine that way) but, head flow will still suck with the stock cams but, when would I stop making power? rpm wise but, how does a gsr head with manifold for 400 sound? reasonable?
 

Winki

Undercover mod
you need a dyno to tell you when you stop making power, also 400 sounds good as long as it has cams and such
 

jason_guy_yeah

New Member
Got a b18a block under 81.5mm that came with the main caps, crank and used arp head studs. The studs have been used twice, can I resue them? And oh, I ordered 81.5mm Aris pistons at 8.9:1 cp, so...trip to the machine shop. And thanks for all the info guys.
 


Winki

Undercover mod
Got a b18a block under 81.5mm that came with the main caps, crank and used arp head studs. The studs have been used twice, can I resue them? And oh, I ordered 81.5mm Aris pistons at 8.9:1 cp, so...trip to the machine shop. And thanks for all the info guys.
you can reuse them. and sounds like fune but i dont not approve of yuor piston brand but to each there own.:D
 
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