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Old 07-17-2019, 08:42 PM
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Do angle plug heads use same manifold as standard head ?

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Old 07-17-2019, 10:09 PM
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Quote:
Originally Posted by Kjtw View Post
Do angle plug heads use same manifold as standard head ?

Angle plug heads can be very troublesome for plug to manifold or header fits. The safest play since you already know that straight plugs clear your exhaust is to stay with that configuration.


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Old 07-17-2019, 11:08 PM
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Quote:
Originally Posted by Kjtw View Post
Do angle plug heads use same manifold as standard head ?
Intake manifold or exhaust manifold??

Intake manifold doesn't care what spark plug angle is, it just needs to match the heads intake bolt pattern, which can be either original 12 bolt standard, or 8 bolt Vortec.

Exhaust manifolds is a different story...some exhaust manifolds and headers clear with no problem, others don't. Entirely depends on manifold design or header pipe routing, and what vehicle it is being placed in.

Majority of off=the-shelf street and street/strip headers will NOT clear angle plug heads....typically only Race headers fit and clear angle plugs, and there are a lot of vehicles out there where no one builds a off-the-shelf race header for it. The ones that are available are typically 2-5 times the price of straight plug/stock head headers.
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