What are the specs of the Erson E270321 Hi-Flow AH cam?

Per the catalog: RPM range 2000-5000, duration IN 284°/EX 284° advertised and 220°/220° (at .050"), lift .504" intake and .504" exhaust, 110° lobe separation, 4° advance.

What kind of engine is the E270321 Hi-Flow AH cam intended for?

The catalog says it works great in slightly modified engines with up to 9.5:1 compression; its high-lift, short-duration design builds good torque and mid-range performance.

What does the catalog say about 'The Performer' cam (TQ20H)?

It offers superior low- and mid-range power with good idle, fuel efficiency and driveability; a 4-barrel carburetor and headers are recommended. RPM range is 1500-4500, with exhaust duration 292°/214° and .478" lift (row partially cut off).

What are the Erson and PBM tech line phone numbers?

Erson Tech Line: 800-641-7920; PBM Tech Line: 800-588-9608.

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Erson Cams Catalog Page 204 - E270321 Hi-Flow AH & TQ20H Camshaft Specs

Erson/PBM camshaft spec catalog page 204: Hi-Flow AH cam E270321 duration and lift figures

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Camshaft selection catalog page (Erson Cams/PBM) listing grind E270321 Hi-Flow AH specs: 284 deg duration, .504 in lift, 110 lobe separation, 2000-5000 rpm range.

AI caption October 2017 · Photo 1225 of 1564

This is page 204 of an Erson Cams / PBM Performance Products camshaft catalog, showing part of a camshaft specification table. The fully legible row describes camshaft part number E270321 "Hi-Flow AH": recommended RPM range 2000–5000, advertised duration 284° intake and exhaust, duration at .050" of 220° intake and exhaust, valve lift of .504" intake and .504" exhaust, 110° lobe separation angle, and 4° (advance). The application note states it "works great in slightly modified engines with up to 9.5:1 compression" and that its high-lift, short-duration design builds good torque and mid-range performance. A partially cut-off row above shows "The Performer" grind (TQ20H, part number partially visible as E270…), RPM range 1500–4500, exhaust 292°/214°, .478" lift, described as having superior low- and mid-range power, good idle, fuel efficiency and driveability, with a 4-barrel carburetor and headers recommended. The footer shows the Erson Cams and PBM Performance Products logos and tech line phone numbers: Erson 800-641-7920 and PBM 800-588-9608. The specific engine family this page covers is not visible in this crop.

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Frequently asked questions

What are the specs of the Erson E270321 Hi-Flow AH cam?: Per the catalog: RPM range 2000-5000, duration IN 284°/EX 284° advertised and 220°/220° (at .050"), lift .504" intake and .504" exhaust, 110° lobe separation, 4° advance.
What kind of engine is the E270321 Hi-Flow AH cam intended for?: The catalog says it works great in slightly modified engines with up to 9.5:1 compression; its high-lift, short-duration design builds good torque and mid-range performance.
What does the catalog say about 'The Performer' cam (TQ20H)?: It offers superior low- and mid-range power with good idle, fuel efficiency and driveability; a 4-barrel carburetor and headers are recommended. RPM range is 1500-4500, with exhaust duration 292°/214° and .478" lift (row partially cut off).
What are the Erson and PBM tech line phone numbers?: Erson Tech Line: 800-641-7920; PBM Tech Line: 800-588-9608.